Meade | LNT | Instruction manual | Meade LNT Instruction manual

Instruction Manual
DS-2000 Series
Reflecting and Refracting Telescopes
AutoStar® — LNT™ — SmartFinder™
™
MEADE.COM
WARNING!
Never use a Meade® DS2000™
Telescope to look at the Sun!
Looking at or near the Sun will cause
instant and irreversible damage to
your eye. Eye damage is often
painless, so there is no warning to the
observer that damage has occurred
until it is too late. Do not point the
telescope at or near the Sun. Do not
look through the telescope or
SmartFinder™ as it is moving. Children
should always have adult supervision
while observing.
CONTENTS
Quick-Start Guide .......................................................... 4
Telescope Features ...................................................... 7
Autostar Features .......................................................... 9
Getting Started ..............................................................11
Packing List ..............................................................11
How to Assemble Your Telescope ............................11
Using Smartfinder ....................................................12
Aligning Smartfinder ............................................13
Choosing an Eyepiece ............................................14
The Barlow Lens ......................................................14
Observing ......................................................................14
Observing by Moving the Telescope Manually ........14
Terrestrial Observing ................................................15
Observing Using Autostar's Arrow Keys ..................15
Slew Speeds ............................................................15
Observe the Moon ....................................................16
Astronomical Observing ............................................16
To Track an Object Automatically..............................16
Moving Through Autostar’s Menus......................16
Initializing Autostar ..............................................17
Observe a Star Using Automatic Tracking ..........18
Automatic Alignment ................................................18
Go To Saturn ............................................................19
Take a Guided Tour ..................................................19
Basic Autostar Operation................................................20
Autostar Navigation Exercise ....................................20
Entering Numbers and Text into Autostar ................21
Navigating Autostar ..................................................21
Adjusting the Speed of a Scrolling Message ............21
Menus and Menu Options ..............................................22
Complete Autostar Menu Structure ..........................22
Object Menu..............................................................23
Event Menu ..............................................................24
Glossary Menu ..........................................................24
Utilities Menu ............................................................24
Setup Menu ..............................................................26
Optional Accessories ......................................................29
Caring for Your Telescope ............................................30
Collimation ................................................................30
Meade Customer Service ........................................32
Specifications ............................................................33
Appendix A: Celestial Coordinates ................................35
Locating the Celestial Pole ......................................35
Appendix B: To Find Objects Not in the Database ........36
Appendix C: Observing Satellites ..................................37
Appendix D: Training the Drive ......................................38
Appendix E: Battery Replacement ................................39
Appendix F: How to Manually Set the Time and Date ..40
Appendix G: Electronic Controller (DS-2000EC Users Only)..41
Optional #494 Autostar for DS-2000EC Users ........42
Basic Astronomy ............................................................43
WARNING!
Never use a Meade® Telescope to look
at the Sun! Looking at or near the Sun will
cause instant and irreversible damage to
your eye. Eye damage is often painless, so
there is no warning to the observer that
damage has occurred until it is too late. Do
not point the telescope or its viewfinder at
or near the Sun. Do not look through the
telescope or its viewfinder as it is moving.
Children should always have adult supervision while observing.
CAUTION:
Use care to install batteries as indicated by the
battery compartment. Follow battery manufacturer's precautions. Do not install batteries backward
or mix new and used batteries. Do not mix battery
types. If these precautions are not followed, batteries may explode, catch fire, or leak. Improperly
installed batteries void your Meade warranty.
If you are anxious to use your DS Astro
Telescope for the first time, before a
thorough reading of this instruction manual,
see the QUICK-START GUIDE on page 4.
IMPORTANT NOTE:
DS-2000EC users, see APPENDIX E, page 41,
for information about your supplied Electronic
Controller. Autostar information does not apply.
DS-2000EC users may obtain the #494 Autostar
handbox as an optional accessory. See page 42
for more information.
® The name “Meade,” “AutoStar,” and the Meade logo are
trademarks registered with the U.S. Patent Office and in
principal countries throughout the world. All rights reserved.
™ “LPI” and “Tonight’s Best” are trademarks of Meade
Instruments Corporation.
Patents:
US 7,092,156 and US 7,079,317
Other Patent Pending
© 2005 Meade Instruments Corporation.
3
QUICK-START GUIDE
1
4&5
Fasten
wingnuts
1.
Open the tripod: Remove the tripod from the
giftbox and stand vertically. Gently pull the legs
apart to a fully open position. Attach the tray to the
tripod: Slide the bolts through the tray and struts.
Thread the wingnuts onto the bolts.
4.
Remove 4 screws from the mounting arm
shaft: Locate the four screws on the mounting
shaft. Remove the screws using a "+" (Phillips
head) screwdriver.
5.
Attach the cradle to the mounting arm: Line up
the cradle with the mounting arm shaft. The cradle contains a molded "key" that fits into a slot on
the shaft. Line up the key and the slot, and slide
the cradle onto the shaft. This automatically lines
up the mating threads on the cradle with the ones
on the shaft. Replace the four screws you
removed in step #4 into the mating threads as
depicted in the diagram above.
2
6
2.
Attach the mounting arm assembly: Place the
mounting arm assembly into the tripod base.
Reach underneath and thread the mounting knob
through the tripod base and into the mounting
arm assembly. Tighten to a firm feel only, do not
overtighten. While observing, you may wish to
slightly loosen this knob and rotate the mounting
arm assembly with attached optical tube (see
step #6 below) around the horizontal axis.
6.
Attach and balance the optical tube: Replace
the optical tube into the cradle ring. Tighten the
cradle rings lock knob so that it holds the optical
tube loosely; do not tighten the cradle ring lock
knob at this point. Slide the tube back and forth
until you find a position where the tube remains
horizontal (i.e., without tipping up and down).
Tighten the cradle rings lock knob to a firm feel.
3
7a
D
A
3.
Remove the optical tube assembly from the
cradle rings: The optical tube assembly is
shipped with the cradle rings attached. The rings
need to be removed so they can be attached to
the mounting arm. Loosen the cradle lock knob
until you can open the cradle rings. Remove the
optical tube assembly from the cradle rings.
F
B
C
E
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.
4
9
7b
I
D
F
H
9.
E
7a. Attach the 90° diagonal prism (refractor models
only, see inside front cover): Pull out to remove
the plastic dust cover from the eyepiece holder
(A). Slide the tube of the diagonal prism (B) into
the telescope’s eyepiece-holder and tighten the
thumbscrews (C) to a firm feel only to secure.
7b. Insert the eyepiece: Remove the supplied
25mm or 26mm eyepiece (D) from its container
and place it in the diagonal prism (refractor models only; see Fig. 7a) or directly into the eyepiece
holder (reflector models only; see Fig. 7b).
Tighten the thumbscrews (F) to a firm feel only.
Remove the dust cover from the end of optical
tube assembly. Use the focus knobs (E) to bring
objects into focus.
8
Connect Autostar: Be certain that the power
switch (H) on the computer control panel is in the
OFF position. Plug the coil cord of the Autostar
Controller into the HBX port (I). Turn on the computer panel; the red LED lights when power is
supplied to the panel.
10
Slew Speed:
Fast
.
.
.
Medium
.
.
.
Slow
J
K
10. Change Speeds: Press the key prompted by
Autostar to accept the Sun warning. You can now
use the Arrow keys (J) to move the telescope up,
down, right, or left. To change one of the telescope's nine slew speeds, briefly press the
SPEED/? key (K). Each press decreases the slew
speed down one level, and then will cycle back to
the fastest speed.
G
11
8.
Insert batteries: Open the battery compartment
by lifting the cover and pulling it away from the
drive base.
11. Sight along the tube: Sight along the side of the
telescope's main tube to locate an object. Practice
using the Autostar Arrow keys to center an object
in the telescope's field of view.
Remove the battery holder from the compartment
and carefully lift the 9v connector out from the
compartment. Whenever you replace the batteries, to safeguard the wires, disconnect the 9v
connector (G) from the battery holder before
removing the batteries.
.
If you wish to attach Smartfinder, see page 11.
If you wish to initialize Autostar, see page 17.
If you wish to align the telescope, go to page
18.
If you wish to use Autostar to view Saturn, go
to page 19.
Insert eight AA-size batteries into the battery
holder, oriented as shown on the diagram on the
battery slots of the battery holder. Connect the 9v
connector plug to the battery holder. Carefully
replace the battery holder back into the battery
compartment. Replace the cover.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.
5
8
5
other
side
9
E
7
F
6
2
4
Fig. 1b (Inset): (E) Altitude Setting
Circle; (F) Altitude Lock
1
3
11
10
12
7
other side
(not visible)
2
1. Focus Knob
13
25
2. Eyepiece Holder
3. 90° Diagonal Prism
14
5
(refractors only)
4. Eyepiece Holder
Thumbscrew
15
5. Eyepiece
6. Focus Lock Knob
16
7. Smartfinder-LNT Module
3
8. Smartfinder
Alignment Screws
24
23
17
9. Smartfinder Lens
10. Altitude Setting Circle
26
and Lock
1
11. Dew Shield
12. Dust Cap
13. Optical Tube
22
14. Cradle Ring Lock Knob
15. Cradle Ring
16. Mounting Arm and Shaft
17. Computer Control Panel
20
19
18. Accessory Tray
Attachment Bolts
19. Accessory Tray
20. Inner Support Struts
21. Tripod Legs Locks
22. Tripod Legs
21
23. Tripod Base
24. Azimuth Setting Circle
25. Battery Compartment
26. Base Lock Knob
18
A
B
C
D
Fig. 1c (Inset): Computer Control Panel. (A)
Handbox port; (B) Power indicator light, (C)
ON switch; (D) Auxiliary port.
Fig. 1: DS-2000 Series Telescope.
Features of the DS-2000 Series telescopes are virtually identical. Certain features of your telescope may look different than, or be
positioned slightly different than the one pictured here, but the functionality of the features is the same.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.
6
TELESCOPE FEATURES
Take the time to become acquainted with all of these controls before attempting observations
through the telescope.
1
Focus Knob: Moves the telescope’s focus drawtube in a finely-controlled motion to achieve
precise image focus. Rotate the focus knob clockwise to focus on distant objects, and
counterclockwise to focus on nearby objects.
2
Eyepiece Holder: Holds the eyepiece in place. On refractor models, also holds the 90°
diagonal prism in place.
3
90° Diagonal Prism (refractor models only): Holds the eyepiece upright for easy viewing.
Results in an upright, but reversed viewing of land objects.
4
Eyepiece Holder Thumbscrew: Tightens the eyepiece in place. Tighten to a firm feel
only.
5
Eyepiece: Place the supplied eyepiece into the eyepiece holder (reflector models only) or
the 90° Diagonal Prism (refractor models only, 3, Fig. 1) and tighten in place with thumbscrew (4, Fig.1).
6
Focus Lock Knob: Designed to prevent the focuser drawtube from moving when a heavy
accessory, such as a camera, is attached to the focuser assembly. For normal observing
with an eyepiece and diagonal prism, it is not necessary to use the lock knob.
7
Smartfinder - LNT Module: Provides an easier way to initially sight objects than the main telescope eyepiece which has a narrower field of view. You may blink the red dot off and on.
See pages 12-13.
8
Smartfinder Alignment Screws: Adjust these screws to align the Smartfinder. See page
13 for more information.
9
10
Smartfinder Lens: The red dot is projected onto this lens.
Altitude Setting Circle and Lock
A) Altitude Setting Circle: Displays Altitude (vertical) coordinates (A, Fig. Ib).
B) Altitude Lock: Controls the manual vertical movement of the telescope. Turning
the Altitude lock counterclockwise unlocks the telescope enabling it to be freely
tilted by hand on the vertical axis. Turning the Altitude lock clockwise (to a firm
feel only) prevents the telescope from being moved manually and engages the
vertical motor drive clutch for Autostar operation (B, Fig. Ib).
11
12
Dew Shield: Reduces dew formation on the telescope's primary lens (refractor models only).
Dust Cap: Pull to remove the dust cap from the front lens of the telescope.
Note: The dust cap should be replaced and the power turned off to the telescope
after each observing session. Verify that any dew that might have collected during
the observing session has evaporated before replacing the dust cap.
13
Optical Tube: The main optical component that gathers the light from distant objects and
brings this light to a focus for observation with the eyepiece.
14
15
16
Cradle Ring Lock Knob: Tighten to a firm feel to hold the optical tube securely in place.
17
Computer Control Panel (Fig. Ic)
Cradle Ring: Holds optical tube in place. Attaches to the mounting arm shaft (16, Fig. 1)
Mounting Arm and Shaft: Holds the optical tube assembly. Attaches to the tripod base
(23, Fig. 1).
A. Handbox (HBX) Port: Plug the #494 Autostar handbox (AT models) or the
Electronic Controller (EC models) into this port.
B. LED: The red power indicator light illuminates when power is supplied to the
connected handbox and to the telescope’s motor drive.
C. ON Switch: Press to turn the Computer Control Panel and Autostar ON or OFF.
Note: Always remove the batteries if they are not to be used for a long period of
time.
D. Auxiliary (AUX) Port:Provides connection for current and future Meade accessories. See OPTIONAL ACCESSORIES, page 29.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
7
18
Accessory Tray Attachment Bolts - Attach to wing nuts to fasten tray to the tripod. See
page 11 for more information.
Note: It is not necessary to remove the tray each time you collapse the tripod. The
tray is designed to be collapsed with the legs.
19
Accessory Tray - Conveniently holds extra eyepieces, Autostar handbox, and other accessories.
20
21
nner Support Struts (3) - Make the tripod more secure and stable.
22
23
24
25
Tripod Legs - Spread the legs out as far as they will open for a secure viewing platform.
26
Base Lock Knob (not visible in photo) - Attaches mounting arm assembly to tripod base.
Loosen before moving the optical tube on the horizontal axis. See page 11 for more information.
Tripod Legs Locks (3) - Lift the lock up to loosen inner section of a tripod leg and extend
the inner leg to desired height. Press the lock down to lock the leg in place.
Tripod Base - Holds the mounting arm assembly (16, Fig. 1) in place.
Azimuth Setting Circle - Displays Azimuth (horizontal) coordinates.
Battery Compartment - Install eight user-supplied AA batteries in this compartment. See
page 12 for more information.
1. Liquid Crystal Display (LCD)
2. ENTER Key
3. MODE Key
4. GOTO Key
5. Arrow Keys
6, 7. Scroll Keys
8. Speed/? Key
9. Coil Cord
j
Fig. 2: #494 Autostar Handbox.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
8
AUTOSTAR FEATURES
NOTE:
DS-2000EC users,
see APPENDIX E,
page 39, for information about your supplied Electronic
Controller. Autostar
information does not
apply.
DS-2000EC users
may obtain the #494
Autostar handbox as
an optional accessory. See page 42 for
more information.
The #494 Autostar controls the DS-2000AT Series Telescopes. Nearly all telescope operations
are accomplished with just a few pushes of Autostar’s buttons. Some of the major
features of Autostar are:
■
Automatically move the telescope to any of the 1400 objects stored in the database or
manually enter the astronomical coordinates of any celestial object.
■
Take a guided tour of the best celestial objects to view on any given night of the year.
■
Access a glossary of astronomical terms.
■
Calculate which eyepiece to use for optimum viewing of a celestial object.
The Autostar Computer Controller provides control of virtually every telescope operation.
Autostar has soft-touch keys designed to have a positive feel. The LCD (Liquid Crystal Display)
is backlit with a red LED (Light Emitting Diode) for easy viewing in the dark. The backlit display,
key arrangement, and sequential database make Autostar extremely user friendly.
NOTE: Autostar does not require batteries; the telescope’s batteries supply power
to Autostar.
1
2
2-Line LCD Display - Provides an visual interface between Autostar and the telescope.
•
Top line: Displays a menu.
•
Bottom line: Displays a menu option or information about an object or subject,
depending on what operation is being performed.
ENTER Key - Selects a choice or accesses the next menu or level. This is similar to a
Return key on a computer. See MOVING THROUGH AUTOSTAR'S MENUS, page 16 and
MENUS AND MENU OPTIONS, page 22.
NOTE: If ENTER is pressed and held for two seconds or more and then released,
Autostar emits a beep and “ENTER to Sync” is displayed. "ENTER to Sync" can
only be used after the telescope has been aligned and is pointing at an object. If the
"ENTER to Sync" feature is
accessed by mistake, press MODE
DS-2000 TIPS
to return to the previous screen. See
HIGH PRECISION, page 27, for more
details about this feature.
Join an Astronomy Club
3
MODE Key - Returns to the previous
menu or level. The MODE key is similar
to the ESCAPE key on a computer.
NOTE: Pressing MODE while in the
“Select Item” level moves Autostar to
the topmost screen: “Select Item:
Object.”
NOTE: If MODE is pressed and held
for two seconds or more, the following information displays :
• Azimuth and Altitude
(astronomical) coordinates
• Altitude (vertical) and Azimuth
(horizontal) coordinates
• Local Time and Local Sidereal
Time (LST)
• Timer and Alarm Status
Press MODE again to return to the
previous menu.
Attend a Star Party
A fun way to learn more about astronomy is to
join an astronomy club. Check your local newspaper, school, library, or telescope dealer to find
out if there’s a club in your area.
At club meetings, you will meet other astronomy
enthusiasts with whom you will be able to share
your discoveries. Clubs are an excellent way to
learn more about observing the sky, to find out
where the best observing sites are, and to compare notes about telescopes, eyepieces, filters,
tripods, and so forth.
Often, club members are excellent astrophotographers. Not only will you be able to see examples of their art, but you may even be able to
pick up some “tricks of the trade” to try out on
your DS-2000 telescope.
Many groups also hold regularly scheduled Star
Parties at which you can check out and observe
with many different telescopes and other pieces
of astronomical equipment. Magazines such as
Sky & Telescope and Astronomy print schedules
for many popular Star Parties around the United
States and Canada.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
9
DEFINITION:
Throughout this
manual, you will notice
the term "Alt/Az." Alt/Az
(short for altazimuth)
just means that your
telescope moves up
and down and from
side to side. Alt/Az is
one of many methods
used by amateur
astronomers to locate
celestial objects.
4
GO TO Key - Slews (moves) the telescope to a selected object. While the telescope is
slewing, the operation may be aborted at any time by pressing any key except GO TO.
Pressing GO TO again resumes the slew to the object.
The GO TO key also allows you to perform a "spiral search." A spiral search is useful during alignment after the telescope slews to an alignment star, but the star is not visible in
the eyepiece when the telescope finishes its search. Press GO TO when the slew is finished and the telescope starts slewing in a spiral pattern at a very slow speed around the
search area. Look through the eyepiece and when the object does become visible, press
MODE to stop the spiral search. Then use the Arrow keys to center the object.
5
Arrow Keys - Move the telescope in a specific direction (up, down, left, and right), at any
one of nine different speeds. Speed selection is explained in SLEW SPEEDS, page 15. The
following operations are also available with the Arrow keys:
•
Data Entry - Use the Up and Down Arrow keys to scroll through the letters of the
alphabet and numerical digits. The Down Arrow key starts with the letter "A" and
the Up Arrow key starts with the digit "9." The Left and Right Arrow keys are used
to move the cursor left and right across the LCD display.
•
Alt/Az Alignment - Use the Up and Down Arrow keys to move the telescope vertically up and down. The Left Arrow key moves the telescope horizontally counterclockwise, while the Right Arrow key moves it clockwise.
6,7 Scroll Keys - Allows you to scroll through menu options. The menu is displayed on the
top line of the screen and the options within the menu are displayed, one at a time, on the
second line. Press and hold a Scroll key to move quickly through the options.
The Scroll keys also scroll through the letters of the alphabet and numerical digits.
NOTE: The Scroll Down key and the Down Arrow key move forward through the
alphabet & digits (A to Z, 0 to 9). The Scroll Up key and the Up Arrow key move
backward (Z to A, 9 to 0). Common symbols are also available in the list.
Fasten
wingnuts
Tip: When a message is scrolling across the display, press and hold the Up Scroll
key to increase the scrolling speed or press and hold the Down Scroll key to
decrease the scrolling speed.
Fig. 3 Attach Tray to the tripod: Thread the wingnuts to
the bolts (bottom view).
8
Speed/? Key - Pressing the Speed/? key cycles through the nine slew speeds that move
the telescope. Each time the Speed/? key is pressed briefly, the current slew speed is
shown for about two seconds on the display. See SLEW SPEEDS, page 15.
The Speed/? key also accesses the "Help" file. "Help" provides on-screen information on
how to accomplish whatever task is currently active.
NOTE: Pressing the Speed/? key very briefly changes the slew speed. Holding
down the Speed/? key longer (one to two seconds) accesses the Help function.
If you have a question about an Autostar operation, e.g., INITIALIZATION, ALIGNMENT,
etc., hold down the Speed/? key and follow the directions that scroll on the second line of
the LCD screen.
Fig. 4: Pads allow the
mount to move smoothly.
When a word appears in [brackets], press ENTER to access the Autostar Glossary. A definition or more detailed information is displayed. Press MODE to return to the scrolling
Autostar Help display.
When satisfied with the Help provided, press MODE to return to the original screen and
continue with the chosen procedure.
9
Coil Cord (not shown) - Plug the Autostar coil cord into the HBX port (A, Fig. 1c) of the
telescope computer control panel.
Fig. 5: Attach the mounting
arm to the tripod base.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
10
GETTING STARTED
Packing List
Getting the telescope ready for first observations requires only a few minutes. When first opening the packing box, note carefully the parts listed on your giftbox.
How to Assemble Your Telescope
The telescope attaches directly to the tripod. The telescope in this way is mounted in an
“Altazimuth” (“Altitude-Azimuth,” or “vertical-horizontal”) format. The telescope in this configuration
moves up and down and from side to side.
Fig. 6: Attach cradle to
mounting arm.
1.
Open the tripod: After removing the field tripod from its shipping carton, stand the tripod
vertically, with the tripod feet down and with the tripod still fully collapsed. Gently pull the
legs apart to a fully open position.
2.
Attach the tray to the tripod: Place the tray (19, Fig. 1) over the inner support strut that
contains two bolt holes. Line up the bolts holes on the tray with the bolt holes on the strut.
Slide the two included bolts through the top of bolt holes (18, Fig. 1) and tighten the bolts
with the included wing nuts on the bottom side of the tray (Fig. 3). Tighten to a firm feel
only.
Note: The tray does not have to be removed when you collapse the tripod at the
end of a viewing session— just loosen the tray’s center lock knob.
Fig. 7: Attach and balance the optical tube.
Fig. 8: Slide viewfinder
into slip-fit bracket.
Fig. 9: Press down on the
quick release tab to
detach the viewfinder
from the bracket.
3.
Three Pads: There are three pads in the tripod base (23, Fig. 1) and three pads on the
mounting arm assembly (16, Fig. 1). These pads allow the mounting arm assembly to move
more easily inside the base. See Fig. 4. This is pointed out just for the user's knowledge of
the telescope; the user does not need to adjust the pads which are pre-installed.
4.
Attach the mounting arm assembly to the tripod base: Place the mounting arm assembly into the tripod base and continue to hold onto the arm assembly. With your other hand,
reach underneath the base and thread the mounting lock knob (26, Fig. 1) through the tripod base and into the mounting arm assembly. Tighten to a firm feel only; do not overtighten. While observing, you may wish to loosen this knob and rotate the mounting arm assembly and optical tube (see step #8) on the horizontal axis.
5.
Remove the optical tube assembly from the cradle rings: The optical tube assembly is
shipped with the cradle rings attached. The rings need to be removed before they can be
attached to the mounting arm. Loosen the cradle lock knob (14, Fig. 1) until you can open
the cradle rings. Remove the optical tube assembly (13, Fig. 1) from the cradle rings.
6.
Remove 4 screws from the mounting arm shaft: Locate the four screws on the mounting shaft. Remove the screws using a "+" (Phillips head) screwdriver. Set the screws aside.
7.
Attach the cradle to the mounting arm: Line up the cradle with the mounting arm shaft.
The cradle contains a molded "key" that fits into a slot on the shaft. Line up the key and the
slot, and slide the cradle onto the shaft. This automatically lines up the mating threads on
the cradle with the ones on the shaft. Replace the four screws into the mating threads using
the Phillips head screwdriver (Fig. 6). The key and slot on the shaft set limit stops for the
telescope so that it doesn't strike the base or pass beyond approximately 90° upright when
you use the Autostar handbox.
8.
Attach and balance the optical tube: Replace the optical tube into the cradle ring.
Tighten the cradle ring lock knob so that it holds the optical tube loosely; do not tighten the
cradle ring lock knob at this point. Slide the tube back and forth until you find a position
where the tube remains horizontal (i.e., without slightly tipping up or down). Tighten the cradle rings lock knob to a firm feel. See Fig. 7. Adjust the length of the tripod legs to a comfortable viewing height using the leg locks (21, Fig. 1).
9.
Attach the red dot viewfinder: The viewfinder has a slip-fit type bracket for easy attachment.
Just slide the viewfinder into the bracket until it clicks in place. To detach the bracket, press
down on the bracket's quick release tab and slide the bracket out. See Figs. 8 and 9.
10. Attach the 90° diagonal prism (refractor models only): Pull out to remove the plastic
dust cover from the eyepiece holder. Slide the tube of the diagonal prism (3, Fig. 1) into
the telescope’s eyepiece-holder (2, Fig. 1) and tighten the thumbscrews (to a firm feel only)
to secure the diagonal prism in place.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
11
11. Insert the eyepiece: Remove the supplied eyepiece (3, Fig. 10) from its container and
place it in the diagonal prism (refractor models only; 1, Fig. 10) or directly into the eyepiece
holder (2, Fig. 11, reflector models only). Tighten the thumbscrews (2 and 4, Fig. 10, refractor models only) to a firm feel only. Tighten the thumbscrew (3 , Fig. 11, reflector models
only) to a firm feel only.
3
2
12. Insert batteries: The telescope’s battery compartment (1, Fig. 12) is located on top of the
drive base. Open the battery compartment by lifting the cover and pulling it away from the
drive base.
1
4
Fig. 10: Attach the diagonal
prism (1), tighten prism
thumbscrews (2), insert the
eyepiece (3), tighten eyepiece thumbscrews (4)
(Refractor models).
1
2
3
Fig. 11: Insert the eyepiece
(1) into the eyepiece holder
(2), tighten eyepiece thumbscrew (3) (Reflector models).
3
2
1
Fig. 12: Insert eight AA-size
batteries inside the battery
compartment:
(1) Battery compartment
(2) Battery holder
(3) 9v connector
Remove the battery holder from the compartment and carefully lift the 9v connector out
from the compartment. Take care not to accidentally detach the wires of the battery connector from the base. Whenever you replace the batteries, to safeguard the wires, disconnect the 9v connector from the battery holder before removing the batteries.
Insert eight AA-size batteries into the battery holder, oriented as shown on the diagram on
the battery slots of the battery holder. Connect the 9v connector plug to the battery holder.
Carefully replace the battery holder back into the battery compartment. Replace the cover.
CAUTION: Use care to install batteries as indicated by the battery compartment.
Follow battery manufacturer's precautions. Do not install batteries backwards or
mix new and used batteries. Do not mix battery types. If these precautions are not
followed, batteries may explode, catch fire, or leak. Improperly installed batteries
void your Meade warranty. Always remove the batteries if they are not to be used
for a long period of time.
14. Connect Autostar and Smartfinder: Be certain that the power switch on the computer
control panel (C, Fig. 1c) is in the OFF position. Plug the coil cord of the Autostar Controller
into the HBX port (A, Fig. 1c). Plug the coil cord of the Smartfinder into the AUX port (D,
Fig. 1c). Turn on the power switch; the red LED lights when power is supplied to the panel.
Also see Fig. 13.
NOTE: The Autostar handbox does not require batteries; the telescope’s batteries
supply power to Autostar.
15. Remove the dust cover: Pull out the dust cover (12, Fig. 1) from the optical tube assembly (13, Fig. 1).
Assembly of the basic telescope is now complete.
Using SmartFinder
As with most astronomical telescopes, an eyepieces presents a narrow field of view to the
observer. As a result it is sometimes difficult to locate objects just using your eyepiece. The
SmartFinder has a projected red dot that helps you to locate objects as you move your telescope.
To turn on SmartFinder’s red dot (continuous, without blinking):
1. Press and hold MODE for two seconds. R.A and Dec. coordinates display.
2. Keep pressing the Scroll Down key until “Finder Set: Set” displays.
3. Press ENTER. “Finder Set: Intensity” displays.
4. Press the Scroll Down key. “Finder: Blink On” displays.
5. Press ENTER. A time value, in seconds, displays. For example, “00.5” may display
“00.5” is the amount of time, in seconds, that the red dot will blink “on.” (For this example,
you may select or enter any value except “00.0.”) Press ENTER.
6. Press the Scroll Down key. “Finder: Blink Off” displays.
7. Press ENTER. Use the Number keys to enter “00.0” or press the Scroll Down key until
“00.0” displays. “00.0” is the amount of time in seconds that the red dot will remain “off.”
This
value, along with the value you chose in the “Finder: Blink On” menu, allows the red dot to
remain on without blinking. “00.0” means there is no “off” time, so the dot will remain on
continuously, without blinking.
8. Use these menus to set other blink rates. For example, If you select “00.1” in the Blink
Off
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
12
menu, and “00.2” in the Blink On menu, the red dot will blink on for .2 seconds and then
blink off for .1 second, and then repeat the cycle until you change the values again.
9. Press and hold MODE to exit this function.
Aligning Smartfinder
Fig. 13: Connect Autostar to
the HBX port and
Smartfinder to AUX port.
Because the main telescope has a fairly narrow field of view, locating objects directly in the main
telescope can sometimes be difficult. Smartfinder (7, Fig. 1) projects a small red dot that permits you to more easily locate objects. When Smartfinder and optical tube are aligned to each
other, both point to the same position in the sky. An object located in the viewfinder is therefore
in the eyepiece of the main telescope.
To align Smartfinder:
It is recommended that you perform steps 1 through 4 of this procedure during the daytime and
step 5 at night.
1.
NEVER point
the telescope
directly at or
near the Sun
at any time! Observing
the Sun, even for the
smallest fraction of a
second, will result in
instant and irreversible
eye damage, as well as
physical damage to
the telescope itself.
Loosen the tripod base lock knob (26, Fig. 1) and the Altitude lock (10, Fig. 1), so that the
telescope can move freely.
2. If you have not already done so, place a low-power (e.g., 25mm) eyepiece in the diagonal
prism of the main telescope (3, Fig. 1) and point the telescope at an easy-to-find land object
(e.g., the top of a telephone pole or sign). Turn the focuser knob (1, Fig. 1) to focus the
image in the eyepiece. Center the object precisely.
3. Re-tighten the tripod base lock knob (26, Fig. 1) and the Altitude lock (10, Fig. 1) so that the
telescope does not move during the procedure.
4. Looking through Smartfinder. Turn the
Smartfinder’s two alignment screws (8,
DS-2000 TIPS
Fig. 1) until Smartfinder’s red dot points
precisely at the same object as cenToo Much Power?
tered in the eyepiece. Smartfinder is
Can you ever have too much power? If you’re
now aligned to the main telescope.
referring to eyepiece power (magnification),
5. Check this alignment on a celestial object,
yes, you can! The most common beginner’s
such as the Moon or a bright star, and
mistake is to “overpower” a telescope by
make any necessary refinements.
using too high of a magnification, which the
telescope’s aperture and atmospheric conditions cannot reasonably support. Keep in
mind that a smaller, but bright and wellresolved image is far superior to one that is
larger, but dim and poorly resolved (see
below). Powers above 200X should be
employed only under the steadiest atmospheric conditions.
Autostar can calculate the best eyepiece for
you to use. Try out the “Eyepiece Calc” feature in the Utilities menu.
Most observers should have three or four
additional eyepieces to achieve the full range
of reasonable magnifications possible with
the DS-2000 telescopes. See “OPTIONAL
ACCESSORIES,” page 29.
Fig. 14a & 14b: Jupiter; example of too much
magnification.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
13
Choosing an Eyepiece
A telescope’s eyepiece magnifies the light gathered by the optical tube. Each eyepiece has a
focal length, expressed in millimeters, or “mm.” The smaller the focal length, the higher the
magnification. For example, an eyepiece with a focal length of 9mm has a higher magnification
than an eyepiece with a focal length of 25mm.
Fig. 15: 25mm and
9mm eyepieces.
Your telescope comes supplied with a low-powered 25mm or 26mm eyepiece which gives a
wide, comfortable field of view with high image resolution. Always begin your observations with
this eyepiece.
Low power eyepieces offer a wide field of view, bright, high-contrast images, and eye relief during long observing sessions. After an object is located and centered in the eyepiece, try switching to a higher power eyepiece to enlarge the image.
NOTE: Viewing conditions vary from night-to-night and from site-to-site. Turbulence in
the air, even on an apparently clear night, can distort images. If an image appears
fuzzy and ill-defined, return to a lower power eyepiece for a more well-resolved image.
The power, or magnification of a telescope is determined by the focal length of the telescope
and the focal length of the eyepiece being used. To calculate eyepiece power, divide the telescope's focal length by the eyepiece's focal length. For example, you may wish to use a 25mm
eyepiece with the DS-2000 model DS-2114S. Look up the focal length of the DS-2114S under
SPECIFICATIONS: DS-2114S, page 33. The focal length is listed as 1000mm.
Important Note: When
you look through your
telescope’s eyepiece,
the image might look
strange at first.
If you have a refracting
telescope, objects will
appear right-side-up, but
reversed left-for-right.
This will not make a
difference when
observing astronomical
objects, and in fact, all
astronomical telescopes
present inverted images.
Telescope focal length divided by Eyepiece focal length = Eyepiece power
1000 v 25 = 40
The eyepiece power, or magnification is therefore 40X (approximately).
The Barlow Lens
Some Meade telescopes include a power multiplier called a Barlow lens. Consisting of a lens
mounted in a 4"-long (10cm) tube, the Barlow doubles or triples the power obtained when an
eyepiece is used alone. In the example above, a 25mm eyepiece results in 40X magnification
with the DS-2114S telescope; when this same eyepiece is used in conjunction with a 2x Barlow
lens, power is doubled to 80X. To use the Barlow, insert it into the diagonal prism (refractor
models only) or eyepiece holder, followed by the eyepiece.
OBSERVING
Observing by Moving the Telescope Manually
During terrestrial observing, when a
corrected image (rightside up and correct leftfor-right) is desirable, an
optional Meade 45°
Erecting Prism is
available. See the
OPTIONAL
ACCESSORIES, page
29, or consult the Meade
Telescope Catalog.
No means of correcting
the image is available for
reflecting telescopes—
the image will appear
upside
down
and
reversed left-for-right.
You can also observe stars and objects in the night sky using this method, but note that objects
begin to slowly drift across the eyepiece field. This motion is caused by the rotation of the Earth.
As you become familiar with the Autostar handbox operation, you can counteract the drift using
the automatic tracking feature in the Autostar Setup menu (see TO TRACK AN OBJECT AUTOMATICALLY, page 18), or by using Autostar's GO TO capabilities (see GO TO SATURN, page 19).
If you wish to observe a distant land object, such as a mountain top or a bird, you can observe
by merely pointing the telescope and looking through the eyepiece.
1.
Loosen the telescope’s tripod base lock knob (26, Fig. 1) and Altitude lock (6, Fig. 1), so
that the telescope can move freely.
2.
Point your telescope at distant street signs, mountains, trees, and other structures. Use
Smartfinder to help site-in on an object.
3.
Center the object using Smartfinder and then in the telescope eyepiece. When the object
is centered in your eyepiece, re-tighten the base and Altitude locks.
4.
Practice focusing objects with the focus knob (1, Fig. 1).
5.
Once you get a feel for how your telescope moves and focuses, try to view something
more challenging, like a bird or a distant moving train.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
14
NOTE:
Do not look through
the telescope's eyepiece while it is
rapidly moving.
Children should
always have adult
supervision while
observing.
Terrestrial Observing
DS-2000 refracting telescopes are excellent high-resolution, terrestrial (land) telescopes
(reflecting telescopes are designed primarily for astronomical observations). Viewing terrestrial
objects requires looking along the Earth's surface through heat waves. These heat waves often
cause degradation of image quality. Lower power eyepieces, such as a 25mm eyepiece, magnify these heat waves less than higher power eyepieces. Therefore, lower power eyepieces
provide a steadier, higher quality image. If the image is fuzzy or ill-defined, reduce to a lower
power eyepiece, where the heat waves do not have such an effect on image quality. Observing
in early morning hours, before the ground has built up internal heat, produces better viewing
conditions than during late afternoon hours.
Observing Using Autostar's Arrow Keys
TIP: When a message is scrolling
across the display,
press and hold the
Up Arrow key to
increase the scrolling
speed or press and
hold the Down Arrow
key to decrease the
scrolling speed.
You may observe land and astronomical objects using Autostar's Arrow keys to move the telescope.
1.
Tighten the Altitude lock (10, Fig. 1) and tripod base lock knob (26, Fig. 1).
2.
Make sure the telescope power switch is in the OFF position. Plug Autostar into the HBX
port of the Control Panel.
3.
Flip the telescope power switch to the ON position.
Autostar is activated and a copyright message displays briefly, followed by a short beep.
Then Autostar takes a few moments to start up the system.
4.
5.
A message displays that warns not to look at the Sun. At the end of this message, press
the key prompted by Autostar to signify that the message has been read and understood.
The Arrow keys are now activated. Press the Arrow keys (5, Fig. 2) to slew (move) the
telescope up, down, right, or left.
6.
Press the SPEED/? key (8, Fig. 2) to change the telescope’s slew speed. Each time you
press this key, the speed will change. See SLEW SPEEDS, page 15, for more information.
7.
Use the red dot viewfinder (7, Fig. 1) to locate an object and practice using the Autostar’s
Arrow keys to center the object in the telescope eyepiece's field of view.
8.
Use the telescope’s focus knob (1, Fig. 1) to bring the object into focus.
Slew Speeds
Autostar has nine slew speeds that are directly proportional to the sidereal rate (this is the
speed at which stars move) and have been calculated to accomplish specific functions.
Pressing the SPEED/? key changes the slew speed, which is then shown for about two
seconds on Autostar’s display.
The nine available speeds are:
■
Speed 1
=
2x =
2 x sidereal (0.5 arc-min/sec or 0.008°/sec)
■
Speed 2
=
8x =
8 x sidereal (2 arc-min/sec or 0.033°/sec)
■
Speed 3
=
16x =
16 x sidereal (4 arc-min/sec or 0.067°/sec)
■
Speed 4
=
32x =
32 x sidereal (8 arc-min/sec or 0.13°/sec)
■
Speed 5
=
64x =
64 x sidereal (16 arc-min/sec or 0.27°/sec)
■
Speed 6
=
0.5° = 120 x sidereal (30 arc-min/sec or 0.5°/sec)
■
Speed 7
=
1°/s = 240 x sidereal (60 arc-min/sec or 1°/sec)
■
Speed 8
=
2°/s = 480 x sidereal (120 arc-min/sec or 2°/sec)
■
Speed 9
=
Max = (Maximum speed possible, dependent on battery power)
Speeds 1, 2, or 3: Best used for fine centering of an object in the field of view of a higher power
eyepiece, such as a 12mm or a 9mm eyepiece.
Speeds 4, 5, or 6: Enables centering an object in the field of a low-to-moderate power eyepiece, such as a standard 25mm eyepiece.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
15
Speeds 7 or 8: Best used for rough centering of an object in the eyepiece.
Speed 9: Moves the telescope quickly from one point in the sky to another.
Observe the Moon
Point your telescope at the Moon (note that the Moon is not visible every night) and practice
using the Arrow keys and the slew speeds to view different features. The Moon contains many
interesting features, including craters, mountain ranges, and fault lines. The best time to view
the Moon is during its crescent or half phase. Sunlight strikes the Moon at an angle during these
periods and adds a depth to the view. No shadows are seen during a full Moon, causing the
overly bright surface to appear flat and rather uninteresting.
Consider the use of a neutral density Moon filter when observing the Moon. Not only does it cut
down the Moon's bright glare, but it also enhances contrast, providing a more dramatic image.
Astronomical Observing
Used as an astronomical instrument, your telescope has many optical and electromechanical
capabilities. It is in astronomical applications where the high level of optical performance is
readily visible.
Fig. 16: The Moon is an
excellent object for
beginners to observe.
To Track an Object Automatically
As the Earth rotates beneath the night sky, the stars appear to move from East to West. The
speed at which the stars move is called the sidereal rate. You can setup your telescope to move
at the sidereal rate so that it automatically "tracks" the stars and other objects in the night sky.
In other words, if the telescope is not tracking an astronomical object, the object will drift out of
the eyepiece field of view. The tracking function automatically keeps an object more or less centered in the telescope’s eyepiece.
To track objects, you must first initialize Autostar and then select "Targets: Astronomical" from
the Autostar Setup menu. You must also learn how the Autostar keypad operates in order to
move through the Autostar menus.
Moving Through Autostar’s Menus
Autostar’s menus are organized for quick and easy navigation.
■
■
■
■
Press ENTER to go deeper into
Autostar's menu levels.
Press MODE to move back toward the
top menu level.
Press the Scroll keys to move through
the options available for each level.
Press the Arrow keys to enter characters and digits.
The Arrow keys are also used to move
the telescope.
DS-2000 TIPS
Which One’s the
Alignment Star?
If Autostar has chosen an alignment star with
which you are unfamiliar, how can you be
sure if the star in your eyepiece is really the
alignment star?
The rule of thumb is that an alignment star is
usually the brightest star in that area of the
sky. When you view an alignment star in an
eyepiece, it stands out dramatically from the
rest of the stars in that portion of the sky.
If you have an obstruction, such as a tree or
a building blocking your view of the alignment
star, or if you have any doubts at all about the
star that has been chosen, no problem. Just
press the Scroll Down key and Autostar will
find another star to align upon.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
16
Initializing Autostar
This section describes how to initialize Autostar. Perform this procedure the first time you use
Autostar or after performing a RESET (see RESET, page 28).
Fig. 17: Altitude lock and
setting circle.
DEFINITION:
Initialization is a
procedure that
ensures that Autostar
operates correctly.
When you first use
Autostar, it doesn't yet
know where the
observation location
site is .
Time and Date information is set at the
factory (and do not
need to be entered by
the observer). This
information is held by
a long-life battery.
See APPENDIX E,
page 39, for more
information.
During the procedure,
you will enter the
observation location.
Autostar uses location, plus time and
date information to
precisely calculate the
location of celestial
objects (such as stars
and planets) and to
move your telescope
correctly for various
Autostar operations.
1.
Tighten Locks: Tighten the Altitude lock (10, Fig. 1) and tripod base lock knob (26, Fig. 1).
2.
Plug in Autostar: Make sure the telescope power switch is in the OFF position. Plug
Autostar into the HBX port of the Control Panel.
3.
Turn on Autostar: Flip the telescope power switch to the ON position.
4.
Sun Warning: A message displays that warns you not to look at the Sun. At the end of this
message, press the key prompted by Autostar to signify that the message has been read
and understood.
5.
Bypass Getting Started: The Getting Started menu displays a scrolling message. Press
ENTER (2, Fig. 2) to bypass the Help tutorial.
6.
Daylight Savings Time: The next screen requests the status of Daylight Savings Time.
Press one of the Scroll keys to toggle between the YES/NO settings. When the desired setting displays, press ENTER.
NOTE: When multiple choices are available within a menu option, the current option
is usually displayed first and highlighted by a right pointing Arrow (>).
7.
a.
b.
8.
9.
Set Your Location or Zip Code: The Location screen displays. This screen asks you if you
wish to choose either the zip code of your observing location or the location (i.e.,entering the
city and state or country of your observing location). Press Up to select the zip code option
or down to enter the city and state.
Note: The location settings (country/state/province and city, or zip code) are only
asked for the first time you turn on the control panel. If you wish to change this setting later on, use the Site menu. See SITE, page 28, for more information.
If you chose the zip code option, the leftmost “0” is highlighted. Use the Scroll keys to scroll
through the digits. When you reach the desired number, use the Right Arrow key to move to
the next digit position. Repeat this process until all 5 digits of your zip code are entered.
Press ENTER.
If you chose the location option, the next screen asks for the country or state/province (listed alphabetically) of the observing site.
Use the Scroll keys to scroll through the list of countries, states, and provinces. Press
ENTER when the correct location displays.
The next screen asks for the city (listed alphabetically) closest to the observing site. Use the
Scroll keys to scroll through the list of cities. Press ENTER when the correct city appears on
screen.
AutoStar then requests the telescope model number. Use the Scroll keys to cycle through
the database of models. Press ENTER when your model number displays.
System initialization is complete. The Easy Alignment feature begins automatically after
the control panel is initialized.
Observe a Star using the Automatic Tracking Feature
In this example, the Autostar Arrow keys are used to find a star, and then Autostar's tracking
capability automatically keeps the star centered in your telescope's eyepiece.
1.
Set in Home Position: Level the optical tube and point it North. Make sure that the Altitude Lock
(9, Fig. 1) and tripod base lock knob (26, Fig. 1) are secured as described previously.
2.
Plug in Autostar: Make sure the telescope power switch is in the OFF position. Plug
Autostar into the HBX port of the Control Panel.
3.
Turn on Autostar: Flip the telescope power switch to the ON position.
4.
Sun Warning: A message displays that warns not to look at the Sun. At the end of this message, press the key prompted by Autostar to signify that the message has been read and
understood.
5.
Select Daylight Savings: Set Daylight Savings, if prompted.
6.
Select Setup: Align Option: Press MODE (2, Fig. 2). "Setup: Align" displays.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
17
IMPORTANT NOTE:
Autostar requests the
Zip Code or
Country/State, City, and
Telescope Model
information only the first
time Autostar is
activated. If you wish to
change this information,
use the "Site" and
"Telescope Model"
options in the Setup
menu. See pages 26
and 27 for more
information.
IMPORTANT NOTE:
While performing the
automatic tracking
procedure, only use the
Arrow keys to move the
telescope. Once the
telescope has been set
in the Alt/Az home
position, do not loosen
the telescope locks (10
and 26, Fig. 1), or
move the base
manually, or alignment
will be lost.
7.
Select Setup: Targets Option: Press the Scroll Down key repeatedly until "Setup:
Targets" displays. Press ENTER (2, Fig. 2).
8.
Select Targets: Astronomical Option: "Targets: Terrestrial" displays. Press either of the
Scroll keys once (6 or 7, Fig. 2). "Targets: Astronomical" now displays.
9.
Locate a Bright Star: Use the Arrow keys (5, Fig. 2) to locate a bright star in the night sky.
Use Smartfinder (15, Fig. 1) to help line up on the star. You may choose any unobstructed, bright star for the purposes of this example. Use Autostar's Arrow keys to center the
star in the eyepiece.
10. To Start Tracking: Once the star is centered, press ENTER to select "Astronomical." The
telescope's tracking motors then engage. It may take the tracking motors several seconds
to begin tracking. When they do, it may be necessary to once again center the star in the
eyepiece. The tracking motors will then keep the star you have chosen in the center of the
eyepiece.
If you wish to track another star, use the Arrow keys to slew the telescope to the star.
Center the star. The tracking motors will then keep that star in the center of the eyepiece.
11. To Stop Tracking: Press ENTER. "Setup: Targets" displays. Press ENTER. "Targets:
Astronomical" now displays. Press either of the Scroll keys once. "Targets: Terrestrial" displays. Press ENTER. Tracking is now turned off.
Automatic Alignment
The fastest and easiest way to locate objects with Autostar's GO TO capabilities is to use
Automatic Alignment.
Autostar automatically picks two stars from its database for the Automatic Alignment procedure.
During this procedure, Autostar slews the telescope to a first alignment star. The user is asked
to verify that the telescope is pointed at the chosen star and then prompted to center the star
in the eyepiece. The process is repeated with a second star to complete the alignment.
NOTE: Before aligning the telescope, first verify that INITIALIZING AUTOSTAR, page
17, has been performed. See MOVING THROUGH AUTOSTAR’S MENUS, page 16, if
you wish to learn how to operate Autostar’s keys.
How to Automatically Align the Telescope
If you have just applied power to Autostar, perform steps 1 through 3. If you have already performed the initialization procedure, go to step 4.
1.
Sun Warning: Press the key prompted by Autostar to accept.
2.
Getting Started: Press ENTER to continue.
3.
Daylight Savings: Select “Yes” or “No,” then press ENTER.
4.
Alignment Option Screen: “Setup: Align” displays. Press ENTER.
5.
Select Alignment : “Align: Automatic” displays. Press ENTER.
6.
Autostar Detects North and Level: When you press Enter, Autostar calculates North and
where level is for the telescope. While it is calculating, it displays “Calc North” and “Calc
Level.” While it is calculating, it does not necessarily move to point North or actually level
the telescope—it is just detecting where these positions are. When it is finished calculating, “Searching....” displays as it begins Star Alignment.
7.
Star Alignment - Autostar then chooses two stars to align upon. When the telescope
slews to the first star for alignment, it may not appear in the field of view in the eyepiece.
The alignment star should be easily recognized and be the brightest star in the area of the
sky where the telescope is pointing. Use the Arrow keys to move the telescope until the
star is visible and centered in the eyepiece. Press ENTER. Repeat procedure for the second alignment star.
When the procedure is performed correctly, "Alignment Successful" displays. If Autostar
does not display this message, perform this procedure again.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
18
NOTE: Autostar locates alignment stars based on the date, time, and location
entered. The alignment stars may change from night to night. All that is required is
for the observer to center the selected stars in the eyepiece when prompted.
NOTE: The GO TO key also allows you to perform a "spiral search." A spiral search
is useful when the telescope slews to an object, but that object is not visible in the
eyepiece after the telescope finishes its search. (This sometimes occurs during an
alignment procedure.) Press GO TO when the slew is finished and the telescope
starts slewing in a spiral pattern at a very slow speed around the search area. Look
through the eyepiece and when the object does become visible, press MODE to
stop the spiral search. Then use the Arrow keys to center the object.
Three other methods of alignment are available to the observer: Easy, Two-Star and One-Star.
These methods are included in case the observer prefers to pick out his or her own alignment
stars. See page 25 for more information.
Go To Saturn
After performing the Easy Align procedure, the motor drive begins operating and the telescope
is aligned for a night of viewing. Objects in the eyepiece should maintain their position even
though the Earth is rotating beneath the stars.
IMPORTANT NOTE: Once aligned, only use GO TO or the Arrow keys to move the
telescope. Do not loosen the telescope locks (10 and 26, Fig. 1), or move the base
manually, or alignment will be lost.
This exercise shows how to select a celestial object (Saturn) for viewing from Autostar’s database.
1
2.
3.
4.
5.
NOTE: Saturn is not visible all the time and you may need to choose another object
from Autostar's Object database; however, the procedure, as described below,
remains the same; just choose a different object in step #3.
After the telescope is aligned, “Select Item: Object” displays. Press ENTER.
“Object: Solar System” displays. Press ENTER.
“Solar System: Mercury” displays. Keep pressing the Scroll Down key until “Solar System:
Saturn” displays.
Press ENTER. “Calculating” displays. Then “Saturn” and a set of coordinates displays.
Note that Saturn’s (and other planets’) coordinates change throughout the year.
Press GO TO. “Saturn: Slewing...” displays and the telescope slews until it finds Saturn.
You may need to use the Arrow keys to center Saturn precisely in the eyepiece. Autostar
then automatically moves the telescope so that it "tracks" Saturn (or whatever other object
you may have chosen); i.e., Saturn remains centered in the eyepiece.
Take a Guided Tour
This example demonstrates using “Tonight’s Best” Guided Tour.
1.
2.
3.
4.
5.
6.
After observing Saturn, press MODE twice so that “Select Item: Object” displays again.
Press the Scroll Down key twice. “Select Item: Guided Tour” displays.
Press ENTER. “Guided Tour: Tonight’s Best” displays. Press ENTER.
NOTE: If you wish to try out other Guided Tours, press the Scroll Down key to scroll
through other tour choices. When the tour you wish to select displays, press
ENTER.
“Tonight’s Best: Searching...” displays. After calculating, “Tonight’s Best: Jupiter” displays.
NOTE: Different objects may be displayed on a tour list on any given night.
Press ENTER to display information about the object. Press GO TO to move the telescope
to the object.
Press MODE to return to the Tour list. Press the Scroll keys to scroll through the list. Press
ENTER when you find the next object you wish to observe.
Press and hold down MODE for two seconds to exit the Guided Tour menu.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
19
BASIC AUTOSTAR OPERATION
SETUP MENU
Quick, easy alignment
permits all telescope
operations with only
a 2-minute setup.
Select Item:
Object
Select Item:
Setup
MEADE
UTILITIES MENU
Calculate eyepiece
magnifications;
set timer alerts;
create your own
landmark survey.
OBJECT MENU
Want to see Mars? The Orion nebula?
The Andromeda galaxy? Select from
over 1400 database objects and press
GO TO to move the telescope
automatically to an object.
Select Item:
Event
EVENT MENU
Display the time of
past, present, and future
astronomical events,
such as Moon phases
or meteor showers.
The Universe of
Autostar
Select Item:
Utilities
Select Item:
Guided Tour
GLOSSARY
What is an elliptical galaxy?
How far away is the Sun?
Expand your knowledge of
astronomy by displaying terms
and definitions, and other information.
Select Item:
Glossary
GUIDED TOUR
Autostar escorts you
on a tour of tonight's
best celestial objects
at your viewing location.
Fig. 18: The Autostar Universe: The six primary categories listed in the Select Item menu of Autostar.
It is important to understand that menu selections are set in a loop (Fig. 19). This means that
pressing the Scroll Down key (7, Fig. 2) cycles down through all the available options within a
given category, then returns to the first option. The Scroll Up key (6, Fig. 2) cycles up through the
options in the opposite order. Note that this capability is a quick way to get to an option that is
near the bottom of the list. The following example demonstrates this capability.
Object
Event
Guided Tours
Glossary
Utilities
Setup
Fig. 19: Menus set in a
loop.
ENTER
Select Item
Object
Select Item
Solar System
Fig. 20: Autostar levels.
Example:
To navigate to the “Select Item: Setup” menu option when the “Select Item: Object” menu is
displayed:
1.
Press the Scroll Down key four times or the Scroll Up key once.
Autostar displays two lines of information. The top line shows the current menu level. The second line displays an option which may be selected within that menu level. Some options are
choices that select the next menu level down. The Scroll keys move up and down within the list
of available options, showing one option at a time.
When the desired option is displayed on the second line, press the ENTER key to choose that
option and move down one menu level.
Press the MODE key to leave a level (e.g., the wrong menu option is chosen).
IMPORTANT NOTE: No matter how many levels into Autostar are traveled, each
press of the MODE key moves up a level, until the top level, "Select Item," is
reached. Once in the Select Item level, press MODE to return to the topmost level,
"Select Item: Object."
Autostar Navigation Exercise
To demonstrate how the Autostar menu structure works, the following exercise calculates
Sunset time so an evening observing session can be planned.
NOTE: To perform an accurate calculation, Autostar must be properly initialized
with the current date, time, and location of the observing site. To enter the current
date, time, and location information of your observing site, see INITIALIZING
AUTOSTAR, page 17, before proceeding with this exercise.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
20
To Calculate Sunset time:
1. Press the MODE key several times, until “Select Item: Object” is displayed.
2.
Press the Scroll Down key once to display the “Event” option in the “Select Item” menu.
3.
Press the ENTER key to choose the "Event" option and move down a level. "Event:
Sunrise" is displayed.
4.
Press the Scroll Down key once to display the "Sunset" option in the Event menu.
5.
Press the ENTER key to choose the "Sunset" option and move down another level.
6.
Autostar calculates the Sunset time based on the current date, time, and location. Autostar
then displays the results of the calculation.
7.
Press MODE once to start moving back up through the Autostar levels. The first level up
is the Event menu.
8.
Press MODE again to move up another level. This is the top level, "Select Item."
9.
Press MODE again to return to the starting point of "Select Item: Object."
Entering Numbers and Text into Autostar
To enter numbers and text:
■
Use the Up and Down Arrow keys to
scroll through numbers 0 - 9 and the
alphabet. The Down Arrow key begins
with the letter "A;" the Up Arrow key
begins with digit "9."
To move the cursor across the display:
TIP: When multiple
choices are available within a menu
option, the option
that is currently
selected is usually
displayed first and
highlighted by a
right pointing arrow
(>).
■
Use the Right or Left Arrow key (5, Fig. 2)
to move the cursor from one number to
the next in the display
■
Press ENTER when the desired information has been entered.
Navigating Autostar
Autostar's menus are organized for quick and
easy navigation:
■
Press ENTER
to go deeper into
Autostar's menu levels.
■
Press MODE (3, Fig. 2) to move back
toward the top menu level.
■
Press the Scroll keys to move up and
down through the options or lists
■
Press the Arrow keys to move the cursor
across the display.
■
Press the Help (?) key to access on-line
help.
Adjusting the Speed
Scrolling Message
of
a
■
Press and hold the Scroll Up key to
increase the scrolling speed when a message is scrolling across the display.
■
Press and hold the Scroll Down key to
decrease the scrolling speed when a
message is scrolling across the display.
DS-2000 TIPS
Surf the Web
One of the most exciting resources for astronomy is the Internet. The Internet is full of websites with new images, discoveries, and the latest astronomical information. For example,
when comet Hale-Bopp made its approach to
our Sun in 1998, astronomers around the world
posted new photos daily.
You can find websites for virtually any topic
relating to astronomy on the Internet. Try the
following key word searches: NASA, Hubble,
HST, astronomy, Messier, satellite, nebula,
black hole, variable stars, extrasolar, Chandra,
gamma burster, comets, Astronomy Day, etc.
Check out Meade’s website for the latest product and technical information. You can download the latest software revisions, links to other
astronomical sites, coordinates of celestial
objects, and the latest satellite tracking information for the Autostar handbox. See page 37 for
more information. You’ll find our website at:
http://www.meade.com/
http://www.meade4M.org
Here are some other sites you might find useful:
• Sky & Telescope:
http://www.skypub.com/
• Astronomy:
http://www.astronomy.com/astro/
• The Starfield:
http://users.nac.net/gburke/
• Astronomy Picture of the Day:
http://antwrp.gsfc.nasa.goc/apod/
• Heaven’s Above (satellite information):
http://www.heavens-above.com/
• Photographic Atlas of the Moon:
http://www.lpi.ursa.edu/research/lunar_orbiter
• Hubble Space Telescope Public Pictures
http://oposite.stsci.edu/pubinfo/pictures.html
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
21
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope
as it is moving.
22
Sunrise
Sunset
Moonrise
Moonset
Moon Phases
Next Full Moon
Next New Moon
Next 1st Qtr
Next 3rd Qtr
Meteor Showers
Quadrantids
Lyrids
Eta Aquarids
Delta Aquarids
Perseids
Orionids
Taurids
Leonids
Geminids
Ursids
Solar Eclipses
Lunar Eclipses
Autumn Equinox
Vernal Equinox
Winter Solstice
Summer Solstice
Select Item:
Event
Fig. 21: The Complete Autostar Menu Structure.
Solar System
Mercury
Etc.
Moon
Asteroids
Comets
Constellations
Andromeda
Etc.
Deep Sky
Named Object
Galaxies
Nebulae
Messier
Etc.
Star
Named
SAO Catalog
Double
Variable
Etc.
Satellite
Select
Add
Delete
Edit
User Objects
Select
Add
Delete
Edit
Landmarks
Select
Add
Delete
Identify
Select Item:
Object
Tonight's Best
How Far is Far
A Star's Life
Downloaded Tours
User-created Tours
Tour Objects
Select Item:
Guided Tour
Accretion Disk
Etc.
B...
C...
D...
E...
F...
G...
H...
I...
J...
K...
L...
M...
N...
O...
P...
Q...
R...
S...
T...
U...
V...
W...
X...
Y...
Z...
A...
Select Item:
Glossary
Timer
Set
Start & Stop
Alarm
Set
On & Off
Eyepiece Calc.
Field of View
Magnification
Suggest
Display Options
Sun Warning
Getting Started
Brightness Adj.
Contrast Adj.
Beep
Sleep Scope
Park Scope
Cord Wrap
Select Item:
Utilities
Align
Easy
One Star
Two Star
Date
Time
Daylight Saving
Telescope
Telescope Model
Focal Length
Az/RA Ratio
Alt/Dec Ratio
Mount
Az/RA Percent
Alt/Dec Percent
Train Drive
Tracking Rate
Reverse L/R
Reverse Up/Dn
Calibrate Sensors
Quiet Slew
Max Elevation
Min AOS
Calibrate Motor
High Precision
Targets
Astronomical
Terrestrial
Site
Select
Add
Delete
Edit
Download
Statistics
Reset
Select Item:
Setup
MENUS AND MENU OPTIONS
Object Menu
Almost all observing with Autostar is performed using the Object menu category. (NOTE: Exceptions
include Guided Tour and Landmark Survey.) See GO TO SATURN, page 19, for an example of
observing using the Object menu. Also see TAKE A GUIDED TOUR, page 19.
Many Autostar menu categories contain databases. An Autostar database is a list of viewable
objects, such as stars, planets, comets, nebulae, and so forth. When one of these objects is selected from a database, Autostar moves your telescope (if properly aligned) and points it at the selected object.
The Object Menu options include:
Solar System is a database of the eight planets (Earth is not included) in order out from the Sun,
followed by the Moon, asteroids, and comets.
Constellation is a database of all 88 Northern and Southern Hemisphere constellations. When this
menu option is chosen and a constellation name appears on the first line of the screen, press GO
TO once to change the second line to the name of the brightest star in the constellation. Press GO
TO a second time to slew the telescope to that star. Use the Scroll keys to cycle through the list of
stars in the constellation, from brightest to dimmest.
Deep Sky is a database of objects outside our Solar System such as nebulae, star clusters, galaxies, and quasars.
Star is a database of stars listed in different categories such as named, double, variable, or nearby.
Satellite is a database of Earth-orbiting objects such as the International Space Station, the Hubble
Space Telescope, Global Positioning System (GPS) satellites, and geosynchronous orbit satellites.
User Objects allows the user to define and store in memory deep-sky objects of specific interest
that are not currently in the Autostar database. See "Appendix B" for more information.
Landmarks stores the location of terrestrial points of interest in the permanent Autostar database.
IMPORTANT NOTE: To use the Landmark function, the telescope must be located and
aligned exactly as when the landmark was added to the database.
■
Select: To select a Landmark already in the database (see ADD below), choose the "Select"
option and scroll through the list. Press ENTER to select a Landmark, then press GO TO and
the telescope slews to the object.
■
Add: To add a Landmark, choose the "Add" option. Enter a name for the Landmark. Locate
and center the Landmark in the eyepiece, then press ENTER.
Identify is an exciting feature for an observer who wants to scan the night sky and start exploring.
After the telescope has been properly aligned, use the Autostar Arrow keys to move about in the
sky. Then follow this procedure:
IMPORTANT NOTE: Only use the Arrow keys to move the telescope during the Identify
procedure. Do not loosen the telescope locks or move the base or alignment is lost.
1.
When a desired object is visible in the eyepiece, keep pressing MODE until the “Select Item:
Object” menu is displayed. Press ENTER to select this menu.
2.
Scroll through the Object menu options until the “Object: Identify” screen appears.
3.
Press ENTER. Autostar searches the database for the identity of the object being observed.
4.
If the telescope is not directly on an Autostar database object, the nearest database object is
located and displayed on the screen. Press GO TO and the telescope slews to that object.
Event Menu
The Event menu provides access to dates and times of astronomical events. The Event database
includes:
Sunrise and Sunset calculates the time that the Sun rises or sets on the current date. Find rise
and set times for other dates by entering a new date into the “Setup: Date” menu. See DATE, page
26.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
23
Moonrise and Moonset calculates the time that the Moon rises or sets on the current date.
Find rise and set times for other dates by entering a new date into the “Setup: Date” menu. See
DATE, page 26.
Moon Phases displays the date and time of the next Full, New, 1st Quarter, and 3rd Quarter
Moon.
Meteor Showers provides information on upcoming meteor showers, such as the Perseids, the
Leonids, etc. Also lists the dates of the showers and when they reach maximum.
NOTE: Meteor showers cover large areas of the sky and are usually best observed
with the naked eye.
Solar Eclipse lists upcoming Solar Eclipses, including the date and type (total, annular, or partial) of eclipse, and the location and time of the first and last contacts of the Moon's shadow.
Use the Scroll Up and Down keys to display the available data. Remember, never use a telescope to look at the Sun! See “WARNING!” to the left.
Lunar Eclipse lists upcoming Lunar Eclipses, including the date and type (total, partial,
penumbral) of eclipse. Use the Scroll Up and Down keys to display the available data.
Min. (Minimum) of Algol is the minimum brightness of the dramatic eclipsing binary star system, Algol. It is relatively close at a distance of 100 light years. Every 2.8 days during a 10-hour
period, Algol undergoes a major change in apparent magnitude as one of the two stars passes behind the other. The combined magnitude of the two stars thus dips from +2.1 to a minimum of +3.4 halfway through the eclipse as the second star is hidden. Autostar calculates minimum magnitude time at mid-eclipse.
Autumn and Vernal Equinox calculates the time and date of the fall or spring equinox of the
current year.
Winter and Summer Solstice calculates the time and date of the winter or summer solstice of
the current year.
WARNING!
Never use a
Meade DS2000 Telescope to
look at the Sun!
Looking at or near
the Sun will cause
instant and irreversible damage to
your eye. Eye damage is often painless,
so there is no warning to the observer
that damage has
occurred until it is
too late. Do not point
the telescope or its
viewfinder at or near
the Sun. Do not look
through the telescope or its viewfinder as it is moving.
Children should
always have adult
supervision while
observing.
Glossary Menu
The Glossary menu provides an alphabetical listing of definitions and descriptions for common
astronomical terms and Autostar functions. Access directly through the Glossary menu or
through hypertext words embedded in Autostar. A hypertext word is any word in [brackets],
usually found when using the Autostar Help function or when reading a scrolling message such
as a description of a planet or star. Press ENTER whenever a hypertext word is on screen and
Autostar goes to the glossary entry for that word.
To access directly from the Glossary menu, use the Scroll keys to scroll through the alphabet.
Press ENTER on the desired letter. Scroll to the desired entry and then press ENTER to read
the description.
Utilities Menu
The Utilities menu provides access to several extra features within Autostar, including a countdown timer and an alarm. The Utilities functions include:
Timer selects a countdown timer. This feature is useful for functions such as astrophotography
and tracking satellites. See OBSERVING SATELLITES, page 37. To use the Timer, press
ENTER, then choose “Set” or “Start/Stop."
■
Set: Enter the time to be counted down, in hours, minutes, and seconds, then press ENTER.
■
Start/Stop: Activates the timer set previously. Use the Scroll keys to toggle between ON and
OFF. When ON is displayed, press ENTER to activate the timer. When the timer runs out,
four beeps sound and the timer is deactivated.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
24
Alarm selects a time for an alarm signal as a reminder. To use the Alarm, press ENTER, then
choose "Set" or "Start/Stop."
■
Set: Enter the time of day for the alarm to sound, in hours, minutes, and seconds, then press
ENTER.
■
Start/Stop: Activates the alarm set previously. Use the Scroll keys to toggle between ON
and OFF. When ON is displayed, press ENTER to activate the alarm. When the alarm time
arrives, Autostar beeps. Press ENTER to deactivate the alarm.
Eyepiece Calc calculates information about an eyepiece for the specific telescope to which
Autostar is connected.
■
Field of View: Scroll through a list of available eyepieces. When an eyepiece is selected,
the field of view is calculated.
■
Magnification: Scroll through a list of available eyepieces. When an eyepiece is selected, the
magnification is calculated.
■
Suggest: Autostar calculates and suggests the best eyepiece for viewing, based on the
telescope and the object being viewed.
Display Options enables or disables Autostar’s two initial displays. If both displays are disabled, Autostar begins with the Date display.
■
Sun Warning: Turns the “Sun Warning” message on or off.
■
Getting Started: Turns the “Getting
Started” message on or off.
DS-2000 TIPS
Brightness Adj: Adjusts the brightness of the
display using the Scroll keys. When complete,
press ENTER.
Contrast Adj: Adjusts the contrast of the display using the Scroll keys. When complete,
press ENTER. NOTE: This feature is usually
only required in very cold weather.
Observing Considerations
•
Try to pick an observing site away from
street and house lights, and car headlights. While this is not always possible,
the darker the site, the better.
•
Give your eyes about ten minutes to
adjust to the darkness before observing.
Give your eyes a rest from observing
every ten or fifteen minutes to relieve eyestrain.
•
Try not to use a standard flashlight.
Seasoned observers use red LED flashlights or tape red cellophane over their
flashlights for setup and map reading so
they don’t have to continually readjust
their eyes to the darkness. Be careful not
to shine bright lights if there are other
observers in the area. Never shine a flashlight into a telescope while someone is
observing!
•
Dress warmly. It gets chilly when you’re
sitting for prolonged periods, even on
some summer nights.
•
Practice setting up your equipment during
the day or in a lighted area to become
familiar with it before going to a dark site.
•
Use your 25mm eyepiece to view terrestrial objects and wider areas of space, such
as open star clusters. Use your higher
power eyepieces when you wish to view
something up close, such as craters on
the Moon or the rings of Saturn.
•
Know your observing site. If you’re going
to try out an unfamiliar site, check it out in
the daylight for obstructions and pitfalls.
Beep: Turns the beep on or off.
Sleep Scope is a power saving option that
shuts down Autostar and the telescope without forgetting its alignment. With "Sleep
Scope" selected, press ENTER to activate
the Sleep function. Autostar goes dark, but
the internal clock keeps running. Press any
key, except ENTER, to re-activate Autostar
and the telescope.
Park Scope is designed for a telescope that
is not moved between observing sessions.
Align the telescope one time, then use this
function to park the telescope. Next time it is
powered up, enter the correct date and time –
no alignment is required. Pressing ENTER
causes the telescope to move to its pre-determined Park position. Once parked, the
screen prompts to turn off power.
IMPORTANT NOTE: When the "Park Scope"
option is chosen and the display prompts you
to turn off the telescope's power, Autostar is
unable to be returned to operation without
turning the power off and then back on.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
25
Cord Wrap, when set to "On," moves the telescope in such a way as to prevent the cords and
cables attached to your telescope assembly from getting wound around the assembly and tangled as the telescope slews to objects. "Off" is the default setting.
Setup Menu
Manual Alignment Menus: The telescope must be initialized and aligned before Autostar can
find stars in the sky. If you wish to align the telescope manually, you may do by choosing Easy
Two Star Align, Two Star Align or One Star Align from the Set up menu. Otherwise Autostar performs the default alignment, Automatic Alignment. See page 18.
Unlike the Automatic Alignment procedure, the observer must set the telescope into the home
position before choosing one of the manual alignment methods:
North
Set to 0°
Fig. 22: To set the
telescope in the home
position, first line up
zero with the molded
pointer to level the
optical tube. Then point
the telescope North.
1.
Loosen the telescope’s Altitude lock.
2.
Level the optical tube: Line up 0° on the Altitude setting circle with the
molded triangular pointer next to the circle. See Fig. 1b (inset).
3.
Tighten the Altitude lock (Fig. 17) to a firm feel only.
4.
Point the telescope North. Use a compass or the North Star, Polaris as a guide to locating
North. See Fig. 31, page 35. Also, See Fig. 22.
During EASY TWO-STAR ALIGN, Autostar automatically chooses two bright stars from its database. The user is then requested to center the stars in the eyepiece and press ENTER.
Two-Star Alignment requires some knowledge of the night sky. Autostar displays a database
of bright stars and two stars are chosen by the observer from the database for alignment. It is
recommended that you choose stars with which you are familiar the first trying out this method.
One-Star Alignment also requires some knowledge of the night sky. One-Star Alignment is
identical to Easy: Align (see EASY (TWO-STAR) ALIGN, above), except Autostar displays a database of bright stars and only one star is chosen by the observer. The accuracy of One-Star
Alt/Az Alignment, unlike the Two-Star Alignment procedures, depends on how well the observer levels the telescope and how close to North the telescope is pointed when setting the Home
Position (Fig. 16). Because the Two-Star Alignment methods use two stars to align upon, they
are more precise than One-Star Alignment.
Date changes the date used by Autostar. This function is useful to check events in the past or
future. For example, set the Date menu for a day three months in the future. Then check the
"Select Item: Event" menu for the Sunset time on that date. See EVENT MENU, page 24.
Note: The time and
date information is
kept by a high
precision internal
clock, which is set at
the factory and held
by a long-life lithium
battery.
Replace the internal
clock’s battery with a
CR2023 lithium
battery. This battery is
located in the battery
compartment.
Both batteries are
available from Meade,
photographic supply
houses or any place
lithium batteries are
sold.
Time changes the time entered into Autostar. Setting the correct time is critical for Autostar to
properly calculate locations and events. Time may be set to 24-hour mode (military time) by
selecting the "blank" option which follows the "AM" and "PM" options.
Daylight Saving is used to enable or disable Daylight Savings time.
NOTE: Daylight Savings Time may be referred to by different names in various areas
of the world. Check local time to verify.
Telescope accesses the several options, including:
■
Model: Allows you to select the telescope model connected to Autostar.
■
Focal Length: Displays the focal length of the selected telescope.
■
Az Ratio and Alt Ratio: The Az (Azimuth) ratio and Alt (Altitude) ratio refers to the gears
of the telescope's motors. Do not alter these numbers.
■
Az Percent: The Az (Azimuth) Percent allows you to change the azimuth backlash, i.e.,
the way the Arrow keys move the telescope along the azimuth (horizontal) axis. If you
enter a value near 100, the telescope tube responds more quickly (it responds immediately
at 100%) as you hold down an Arrow key and also slews (moves) the tube more quickly.
If you enter a value near 0, it takes longer for the tube to respond as you hold down an
Arrow key and also slews the tube more slowly. Experiment with this option. Try changing
the percent value until you get a "feel" for the Arrow keys that is comfortable for you.
Alt Percent: The Alt (Altitude) Percent operates identical to the AZ Percent option (see
above), but allows you to change the altitude backlash, i.e., the way the Arrow keys move
the telescope when moving along the altitude (vertical) axis.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
26
■
■
Train Drive: Trains the Altitude and Azimuth motors to locate objects with more precision.
If you are experiencing any problems with pointing accuracy, follow the procedure
described in APPENDIX D: TRAINING THE DRIVE, page 38, to insure accurate pointing
and tracking.
Tracking Rate: Changes the speed at which the telescope tracks targets in the sky.
a.
■
Sidereal: The default setting for Autostar; sidereal rate is the standard rate at which
stars move from East to West across the sky due to the rotation of the Earth.
b. Lunar: Choose this option to properly track the Moon over long observing sessions.
c. Custom: Allows entry of user-defined tracking rates.
Reverse L/R: Reverses the functions of the Left and Right Arrow keys (i.e., the Right key
moves the telescope to the left).
■
Reverse UP/DOWN: Reverses the functions of the Up and Down Arrow keys (i.e., the Up
key moves the telescope down).
■
Calibrate Sensors: This menu allows you to improve your telescope's pointing accuracy
to alignment stars. It calibrates to correct slight mechanical misalignment due to transport,
vibration, or aging. It is recommended that calibration be performed after the LNT Module
batteries are changed (see page 39 for more information).
■
When this menu is selected, the telescope slews to Polaris. AutoStar then prompts you to
center Polaris and to press ENTER. AutoStar uses the position of Polaris to fine tune the
position of North and also for detecting level.
Quiet Slew: Sets the maximum slew rate to 1.5° for quieter operation.
■
Max Elevation: Allows you to enter a value in degrees that sets a limit as to how far the
optical tube can swing upward during a programmed slew. (Note that it does not prevent
you
from
performing
a
manual
slew
past
this
limit.)
This
is
useful when you have a camera or other peripheral attached to the telescope—you can
prevent it from striking the telescope base.
■
Min AOS (Acquisition of Signal): Allows you enter a value in degrees. This value represents the altitude at which your telescope begins to slew when
acquiring a satellite track. This is useful when you are observing satellites, but a tall tree or
building is obstructing the telescope. For example, you might begin to track the satellite at
15° altitude, instead of 5°. See OBSERVING SATELLITES, page 37, for more information
about satellites.
■
Calibrate Motor: If the telescope motors appear to have a problem, use this option to
retest the motors before performing a Reset. This option is also used if an Autostar unit is
moved between telescopes, to match Autostar to the new telescope. To calibrate the
motors, select this option and press ENTER.
■
High Precision: If High Precision is turned on, when looking for a faint celestial object (i.e.,
a nebula or galaxy), Autostar first slews to a nearby bright star and displays "ENTER to
Sync." Center the star in the eyepiece, then press ENTER. At that point the telescope has
a high precision alignment to that part of the sky and it then slews to the object that was
originally requested.
Targets switches between Astronomical targets and Terrestrial targets. If "Astronomical" is
selected, the telescope tracking motor is activated and any object you observe will remain centered in the eyepiece. If "Terrestrial" is selected, the tracking motor is turned off. To learn how
to track an object automatically, see page 18.
Site provides access to several options including:
■
Select: Displays the currently selected observing site. Use the Scroll keys to cycle through
all available sites (see ADD below). Press ENTER when the site you wish to select displays. Use this option when you move to a different geographic location.
■
Add: Allows you to add new observing sites to the database (up to six sites may be stored).
Scroll through the list of Countries/States. Press ENTER when the site you wish to add displays. Then choose the desired city in the same manner.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
27
■
Delete: Deletes a stored site from the database.
■
Edit: Edits a selected site, including: the name, latitude, longitude, and time zone. Time
Zone refers to the Greenwich Mean Time (GMT) time zone shift. Users West of Greenwich,
England use “-” hours, East of Greenwich use “+” hours. For the United States, look up the
time zone shift in Table 1.
NOTE: Autostar compensates for daylight savings time, if selected. See SETUP
MENU: DAYLIGHT SAVING, page 26.
Time Zone
Atlantic
Eastern
Central
Mountain
Pacific
Hawaii
Shift
-4 Hours
-5 Hours
-6 Hours
-7 Hours
-8 Hours
-10 Hours
Table 1: Time Zone Shift.
Download transfers information from a personal computer or another Autostar. During the
operation, the warning “Downloading Do Not Turn Off” appears.
NOTE: The Download function requires the optional #506 Astrofinder Software and
Cable Connector Kit. See the instruction sheet included with the kit for more information on how to download. Also see OPTIONAL ACCESSORIES, page 29.
Statistics provides basic statistical data about Autostar, including:
■
Characters Free: Shows how much room is available in user-defined object memory.
■
Version: Shows the current version of the Autostar software.
Reset completely resets Autostar. Most values entered into the menus revert to factory
defaults. Autostar requires initialization again after a Reset before proceeding with observations. See INITIALIZING AUTOSTAR, page 17.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
28
OPTIONAL ACCESSORIES
A wide assortment of professional Meade accessories is available for the DS-2000 Series
Telescopes. The premium quality of these accessories is well-suited to the quality of the instrument
itself. Consult the Meade General Catalog or www.meade.com for complete details on these
and other accessories.
Eyepieces: For higher and lower magnifications, Meade Series 4000 Super Plössl (SP) yield highresolution imaging with all DS2000 telescope models. A useful selection includes the SP 9.7mm and
SP 12.4mm eyepieces.
#126 2x Barlow Lens (1.25"): Doubles each eyepiece power while maintaining excellent image corrections. For example, a 9mm eyepiece used with the model DS-2060 yields a power of 78X; when
used in conjunction with the #126 Barlow lens, the same eyepiece yields 156X.
#937 2" Diagonal Mirror: Large-barrel 2" eyepieces (e.g., MH 50mm, below) permit wide fields of
view impossible to achieve with eyepieces of smaller barrel diameter. The focusers of all DS-2000
Series telescopes, except for the DS-2060 models, include 2" eyepiece-holders to accept the oversize #937 Diagonal Mirror, which in turn accepts eyepieces of 2" barrel diameter. An adapter is
included to allow for the use of standard 1.25"-barrel eyepieces in the 2" Diagonal Mirror as well.
(Note that the #937 is required only on DS-2000 refracting telescopes (e.g., DS-2070, etc.); DS-2000
reflecting telescopes (e.g., DS-2114S) do not require a diagonal mirror for the use of 2" eyepieces.)
MH 50mm Wide-Field Eyepiece (2" Optical Diameter): Ideal for spectacular low-power scanning
of star fields in the Milky Way or for the study of broad diffuse nebulae, the wide-field MH 50mm eyepiece is a highly desirable accessory for all DS-2000 Series Telescopes (except for the DS-2060mm
models, which cannot accept large-barrel eyepieces). On the DS-2070, for example, the MH 50mm
ocular yields an actual field of view of 2.5° at 14X. On DS-2000 refractors, use with the #937
Diagonal Mirror.
#928 45° Erecting Prism: The 90° diagonal provided with DS-2000 Series refractors results in
upright-but-reversed viewing of land subjects. The #928 45° Erecting Prism (1.25") orients the image
correctly in terrestrial applications and results in a comfortable 45° viewing angle. For use with refractors only.
Camera Adapter: DS-2000 Series Telescopes may be used for through-the-telescope photography
of the Moon and planets or for terrestrial objects. For eyepiece-projection photography with any of
these telescopes, use the Basic Camera Adapter (1.25").
#1240 Electric Focuser: Attaches easily and quickly to any DS-2000 model for smooth, vibrationfree focusing. Each focuser includes coarse and microfine speeds. The standard equipment hand
controller accepts one (user-supplied) 9-volt battery; alternately, the focuser may be operated
through the Electronic Controller or Autostar handbox.
#506 AstroFinder™ Software and Cable Connector Kit: Displays more than 15,000 celestial wonders – galaxies, nebulae, star clusters, stars, and planets – on your PC, enabling even the beginner
to locate and identify objects to observe with the telescope or to print out star charts for use in observing sessions. Operates with any Windows™-based personal computer. The Cable Connector Kit permits connection of any DS-2000 telescope model, Autostar, and PC, for downloading of new software
to Autostar or for updating of Earth satellite or other celestial object positions. This kit is included with
each AstroFinder Software package.
Electronic Eyepiece™: Now everyone can easily share views from an eyepiece – of the Moon, planets, stars, and land objects – on a television screen and allows for direct connection to monitors,
VCR's, and camcorders. This easy-to-set up and easy-to-use monochrome CMOS imager offers builtin contrast control adjustment for varying astronomical and terrestrial lighting conditions.
The AutoStar Suite with Meade LPI™ (Lunar Planetary Imager) turns your DS2000 telescope,
AutoStar and PC into even more powerful and easy-to-use astronomical instrument. Capture great
images of the the Moon, planets, and brighter deep-sky objects, plus terrestrial targets first time out.
With Magic Eye software-assisted focusing. The AutoStar Suite Software includes imaging and planetarium tools. Includes a cable to connect your telescope to your PC.
Atomic Time Updater Module (ATUM). Plug in the cable of the Atomic Time Update Module into
the ATUM port of your telescope’s LNT Module.The Atomic Time Updater Module allows your telescope to update the LNT Module with the signal from the NIST atomic clock in Fort Collins, Colorado.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
29
CARING FOR YOUR TELESCOPE
Your DS-2000 telescope is a precision optical instrument designed to yield a lifetime of rewarding observations. Given the care and respect due any precision instrument, your telescope will
rarely, if ever, require factory servicing. Maintenance guidelines include:
a.
Avoid cleaning the telescope’s optics: a little dust on the front surface of the telescope’s
correcting lens causes virtually no degradation of image quality and should not be considered reason to clean the lens.
b.
When absolutely necessary, dust on the front lens should be removed with gentle strokes
of a camel hair brush or blown off with an ear syringe (available at any pharmacy). DO NOT
use a commercial photographic lens cleaner.
c.
Organic materials (e.g., fingerprints) on the front lens may be removed with a solution of 3
parts distilled water to 1 part isopropyl alcohol. You may also add 1 drop of biodegradable
dishwashing soap per pint of solution. Use soft, white facial tissues and make short, gentle strokes. Change tissues often.
CAUTION: Do not use scented or lotioned tissues or damage could result to the
optics.
d.
If used outdoors on a humid night, water condensation on the telescope surfaces will probably result. While such condensation does not normally cause any damage to the telescope, it is recommended that the entire telescope be wiped down with a dry cloth before
the telescope is packed away. Do not, however, wipe any of the optical surfaces. Rather,
simply allow the telescope to sit for some time in the warm indoor air, so that the wet optical surfaces can dry unattended.
e.
If your telescope is not to be used for an extended period, perhaps for one month or more,
it is advisable to remove the batteries from the telescope. Batteries left in the telescope for
prolonged periods may leak, causing damage to the telescope’s electronic circuitry.
f.
Do not leave the telescope inside a sealed car on a warm summer day; excessive ambient temperatures can damage the telescope’s internal lubrication and electronic circuitry.
Collimation
DS-2000 refracting telescopes are optically aligned (collimated) at the factory prior to shipment,
and it is never necessary to re-collimate the optics of these models. Meade DS-2114mm and
DS-2130mm reflecting telescope models are also factory-aligned, but may occasionally require
re-alignment, particularly if the telescope has received rough handling in shipment. Before
using one of these models for the first time, check the alignment of the optics as outlined in this
section. Good optical alignment is essential for telescope performance, and in any case the
alignment procedure is not difficult to follow.
The optical systems of Meade DS-2000 reflecting telescopes include the following parts: primary
mirror (1, Fig. 23); secondary mirror (2, Fig. 23); secondary mirror-holder (3, Fig. 23); secondary
mirror-vanes (4, Fig. 23) and (1, Fig. 24); primary mirror-tilt screws (5, Fig. 23). The telescope’s
image is brought to a focus at (6, Fig. 23).
1.
Confirm alignment - To confirm optical alignment look down the focuser drawtube (1, Fig.
26) with the eyepiece removed. The edge of the focuser drawtube frames reflections of the
primary mirror (2, Fig. 26), the secondary mirror (3, Fig. 26), the three (“spider”) vanes (4,
Fig. 26) holding the secondary mirror, and the observer’s eye (5, Fig. 26). With the optics
properly aligned, all of these reflections appear concentric (centered), as shown in Fig. 26.
Any deviation from concentricity of any of these telescope parts with the eye requires
adjustments to the secondary mirror-holder (Fig. 24) and/or the primary mirror cell (Fig. 25,
as described below.
2. Secondary mirror-vane adjustments: If the secondary mirror (1, Fig. 27) is left or right of center within the drawtube (2, Fig. 27), slightly loosen the 3-vane adjustment/lock knobs (1, Fig. 24)
located on the outside surface of the main tube and slide the entire secondary mirror-holder system up or down in the slotted holes of the main tube until the secondary mirror is centered in the
drawtube. If the secondary mirror (1, Fig. 27) is above- or below-center within the drawtube,
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
30
4
3
1
2
5
6
Fig. 23.
3
2
2
1
2
3
Fig. 25.
Fig. 24.
1
2
2
3
4
1
5
Fig. 26.
Fig. 27.
1
1
2
2
Fig. 28.
4
3
3
Fig. 29.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope
as it is moving.
31
thread inward one of the adjustment/lock knobs (1, Fig. 24) while unthreading another of these
knobs. Only make adjustments to two knobs at a time until the secondary mirror appears as in
Fig. 28.
3. Secondary mirror-holder adjustments: If the secondary mirror (1, Fig. 28) is centered in the
focuser drawtube (2, Fig. 28), but the primary mirror is only partially visible in the reflection (3,
Fig. 28), the three “+” (Phillips head) secondary mirror-tilt screws (2, Fig. 24) should be slightly unthreaded to the point where the secondary mirror-holder (3, Fig. 24) can rotate about its
axis parallel to the main tube. Grasp the secondary mirror-holder (avoid touching the mirror surface!) with your hand and rotate it until, looking through the drawtube, you can see the primary
mirror centered as well as possible in the reflection of the secondary mirror. With the rotation
of the secondary mirror-holder at this best-possible position, thread in the three Phillips head
screws (2, Fig. 24) to lock the rotational position. Then, if necessary, make adjustments to
these three Phillips head screws to refine the tilt-angle of the secondary mirror, until the entire
primary mirror can be seen centered within the secondary mirror’s reflection. With the secondary mirror thus aligned the image through the drawtube appears as in Fig. 29.
4. Primary mirror adjustments: If the secondary mirror (1, Fig. 29) and the reflection of the primary mirror (2, Fig. 29) appear centered within the drawtube (3, Fig. 29), but the reflection of
your eye and the reflection of the secondary mirror (4, Fig. 29) appear off-center, then the primary mirror tilt requires adjusting, using the Phillips head screws of the primary mirror cell (3,
Fig. 25). These primary mirror-tilt screws are located behind the primary mirror, at the lower
end of the main tube. See Fig. 25. Before adjusting the primary mirror-tilt screws, first unscrew
by several turns (use either a hex wrench or pliers) the three hex-head primary mirror lock
screws (2, Fig. 25) which are also located on the rear surface of the primary mirror cell and
which alternate around the cell’s circumference with the three Phillips head screws. Then by
trial and error turn the primary mirror Phillips head tilt screws (3, Fig. 25) until you develop a
feel for which way to turn each screw to center the reflection of your eye in the drawtube. (An
assistant is helpful in this operation.) With your eye centered as shown in Fig. 26, turn the
three hex head primary mirror lock screws (2, Fig. 25) to re-lock the tilt-angle of the primary
mirror.
The telescope’s optical system is now aligned, or collimated. This collimation should be rechecked from time to time, with small adjustments (per steps 1, 2, and/or 3, above) effected as
required to keep the optics well-aligned.
Meade Customer Service
If you have a question concerning your DS-2000 Telescope, contact the Meade Instruments
Customer Service Department at:
Telephone: (800) 626-3233
Customer Service hours are 8:00 AM to 5:00 PM, Pacific Time, Monday through Friday. In the
unlikely event that your DS-2000 telescope requires factory servicing or repairs, write or call
the Meade Customer Service Department first, before returning the telescope to the factory,
giving full particulars as to the nature of the problem, as well as your name, address, and daytime telephone number. The great majority of servicing issues can be resolved by telephone,
avoiding return of the telescope to the factory.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
32
SPECIFICATIONS
DS-2060
Optical design......................................................................................Refractor
Clear aperture ....................................................................................60mm
Focal length ........................................................................................700mm
Focal ratio ........................................................................................f/11.7
Resolving power..................................................................................1.9 arc secs
Max power ..........................................................................................200X
Mounting..............................................................................................Single-arm, motorized Alt-Az
Alignment ..........................................................................................Altazimuth
Slew Speeds ......................................................................................1x sidereal to 5.5°/sec in 9 increments
Tripod ..................................................................................................Aluminum, full-length; adjustable w/accessory tray
Optical Tube Dimensions ....................................................................2.5" x 27"
Batteries (user-supplied) ....................................................................8 x AA
DS-2070
Optical design......................................................................................Refractor
Clear aperture ....................................................................................70mm
Focal length ........................................................................................700mm
Focal ratio ........................................................................................f/10
Resolving power..................................................................................1.6 arc secs
Max power ..........................................................................................250X
Mounting..............................................................................................Single-arm, motorized Alt-Az
Alignment ..........................................................................................Altazimuth
Slew Speeds ......................................................................................1x sidereal to 5.5°/sec in 9 increments
Tripod ..................................................................................................Aluminum, full-length; adjustable w/accessory tray
Optical Tube Dimensions ....................................................................3.0" x 27"
Batteries (user-supplied) ....................................................................8 x AA
DS-2080
Optical design......................................................................................Refractor
Clear aperture ....................................................................................80mm
Focal length ........................................................................................900mm
Focal ratio ........................................................................................f/11.3
Resolving power..................................................................................1.4 arc secs
Max power ..........................................................................................275X
Mounting..............................................................................................Single-arm, motorized Alt-Az
Alignment ..........................................................................................Altazimuth
Slew Speeds ......................................................................................1x sidereal to 5.5°/sec in 9 increments
Tripod ..................................................................................................Aluminum, full-length; adjustable w/accessory tray
Optical Tube Dimensions ....................................................................3.25" x 34"
Batteries (user-supplied) ....................................................................8 x AA
DS-2090
Optical design......................................................................................Refractor
Clear aperture ....................................................................................90mm
Focal length ........................................................................................800mm
Focal ratio ........................................................................................f/8.8
Resolving power..................................................................................1.3 arc secs
Max power ..........................................................................................300X
Mounting..............................................................................................Single-arm, motorized Alt-Az
Alignment ..........................................................................................Altazimuth
Slew Speeds ......................................................................................1x sidereal to 5.5°/sec in 9 increments
Tripod ..................................................................................................Aluminum, full-length; adjustable w/accessory tray
Optical Tube Dimensions ....................................................................3.5" x 31"
Batteries (user-supplied) ....................................................................8 x AA
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
33
DS-2114
Optical design......................................................................................Reflector
Clear aperture ....................................................................................114mm
Focal length ........................................................................................910mm
Focal ratio ........................................................................................f/8
Resolving power..................................................................................1.0 arc secs
Max power ..........................................................................................325X
Mounting..............................................................................................Single-arm, motorized Alt-Az
Alignment ..........................................................................................Altazimuth
Slew Speeds ......................................................................................1x sidereal to 5.5°/sec in 9 increments
Tripod ..................................................................................................Aluminum, full-length; adjustable w/accessory tray
Optical Tube Dimensions ....................................................................5.5" x 34"
Batteries (user-supplied) ....................................................................8 x AA
DS-2114S
Optical design......................................................................................Reflector
Clear aperture ....................................................................................114mm
Focal length ........................................................................................1000mm
Focal ratio ........................................................................................f/8.8
Resolving power..................................................................................1.0 arc secs
Max power ..........................................................................................325X
Mounting..............................................................................................Single-arm, motorized Alt-Az
Alignment ..........................................................................................Altazimuth
Slew Speeds ......................................................................................1x sidereal to 5.5°/sec in 9 increments
Tripod ..................................................................................................Aluminum, full-length; adjustable w/accessory tray
Optical Tube Dimensions ....................................................................5.5" x 18"
Batteries (user-supplied) ....................................................................8 x AA
DS-2130
Optical design......................................................................................Reflector
Clear aperture ....................................................................................130mm
Focal length ........................................................................................1020mm
Focal ratio ........................................................................................f/7.9
Resolving power..................................................................................0.9 arc secs
Max power ..........................................................................................350X
Mounting..............................................................................................Single-arm, motorized Alt-Az
Alignment ..........................................................................................Altazimuth
Slew Speeds ......................................................................................1x sidereal to 5.5°/sec in 9 increments
Tripod ..................................................................................................Aluminum, full-length; adjustable w/accessory tray
Optical Tube Dimensions ....................................................................5.7" x 38"
Batteries (user-supplied) ....................................................................8 x AA
DS-2130S
Optical design......................................................................................Reflector
Clear aperture ....................................................................................127mm
Focal length ........................................................................................1000mm
Focal ratio ........................................................................................f/7.9
Resolving power..................................................................................0.9 arc secs
Max power ..........................................................................................350X
Mounting..............................................................................................Single-arm, motorized Alt-Az
Alignment ..........................................................................................Altazimuth
Slew Speeds ......................................................................................1x sidereal to 5.5°/sec in 9 increments
Tripod ..................................................................................................Aluminum, full-length; adjustable w/accessory tray
Optical Tube Dimensions ....................................................................5.7" x 18"
Batteries (user-supplied) ....................................................................8 x AA
#494 Autostar
Processor ............................................................................................68HC11, 8MHz
Flash Memory ....................................................................................512KB, reloadable
Keypad ................................................................................................10 key alphanumeric
Display ................................................................................................2 line, 16 character LCD
Backlight ..............................................................................................Red LED
RS-232 ................................................................................................Yes
Coil Cord ............................................................................................24"
Database ............................................................................................more than 1400 objects
Length..................................................................................................5.60" (14.2cm)
Width (LCD end)..................................................................................3.08" (78cm)
Width (Connector end) ........................................................................2.10" (53.5cm)
Depth ..................................................................................................0.93" (23.5cm)
Autostar net weight..............................................................................0.35 lbs (0.169kg)
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
34
APPENDIX A
Celestial Coordinates
It is helpful to understand how to locate celestial
objects as they move across the sky.
+90 Dec.
Star
1
17
18
19
16
15
14
13 12
11
ation
clin
De
A celestial coordinate system was created that
maps an imaginary sphere surrounding the Earth
upon which all stars appear to be placed. This
mapping system is similar to the system of latitude
and longitude on Earth surface maps.
In mapping the surface of the Earth, lines of longitude are drawn between the North and South
Poles, and lines of latitude are drawn in an EastWest direction, parallel to the Earth’s equator.
Similarly, imaginary lines have been drawn to form
a latitude and longitude grid on the celestial
sphere. These lines are known as Right
Ascension and Declination.
North
Celestial
Pole
(Vicinity
of Polaris)
10
9
Earth’s
Rotation
20 21
22
23
0
2
1
3
Right Ascension
8
4
7
6
5
Celestial
Equator
0 Dec.
2
South
Celestial
Pole
-90 Dec.
Fig. 30: Celestial Sphere.
The celestial map also contains two poles and an equator just like a map of the Earth. The
poles of this coordinate system are defined as those two points where the Earth’s north and
south poles (i.e., the Earth's axis), if extended to infinity, would cross the celestial sphere. Thus,
the North Celestial Pole (1, Fig. 30) is that point in the sky where an extension of the North
Pole intersects the celestial sphere. This point in the sky is located very near the North Star,
Polaris. The celestial equator (2, Fig. 30) is a projection of the Earth’s equator onto the celestial sphere.
So just as an object's position on the Earth’s surface can be located by its latitude and longitude, celestial objects may also be located using Right Ascension and Declination. For example, you could locate Los Angeles, California, by its latitude (+34°) and longitude (118°).
Similarly, you could locate the constellation Ursa Major (the Big Dipper) by its Right Ascension
(11hr) and its Declination (+50°).
• Right Ascension (R.A.): This celestial version of longitude is measured in units of hours (hr),
minutes (min) and seconds (sec) on a 24-hour "clock" (similar to how Earth's time zones are
determined by longitude lines). The "zero" line was arbitrarily chosen to pass through the constellation Pegasus — a sort of cosmic Greenwich meridian. R.A. coordinates range from 0hr
0min 0sec to 23hr 59min 59sec. There are 24 primary lines of R.A., located at 15-degree
intervals along the celestial equator. Objects located further and further East of the zero R.A.
grid line (0hr 0min 0sec) carry higher R.A. coordinates.
• Declination (Altitude): This celestial version of latitude is measured in degrees, minutes,
and seconds (e.g., 15° 27' 33"). Dec. locations north of the celestial equator are indicated with
a plus (+) sign (e.g., the Dec. of the North celestial pole is +90°). Dec. locations south of the
celestial equator are indicated with a minus (–) sign (e.g., the Dec. of the South celestial pole
is –90°). Any point on the celestial equator (such as the the constellations of Orion, Virgo, and
Aquarius) is said to have a Declination of zero, shown as 0° 0' 0."
Locating the Celestial Pole
To get basic bearings at an observing location, take note of where the Sun rises (East) and sets
(West) each day. After the site is dark, face North by pointing your left shoulder toward where
the Sun set. To precisely point at the pole, find the
North Star (Polaris) by using the Big Dipper as a
guide (Fig. 31).
Little Dipper
IMPORTANT NOTE: For almost all astronomical observing requirements, approximate settings are acceptable. Do not allow
undue attention to precise alignment of the
telescope to interfere with your basic
enjoyment of the instrument.
Big Dipper
Polaris
Cassiopeia
Fig. 31: Locating Polaris.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
35
APPENDIX B
Using Autostar to Find Objects Not in the Database
TIP:
Entering R.A. and
Dec. Coordinates of
an object without
using the menus:
If you do not wish to
navigate through the
menus, a more direct
way to enter coordinates is to press and
hold MODE for two
seconds or more. R.A.
and Dec. coordinates
display. Press GO TO.
"Object Position" and
a set of coordinates
displays. Enter the
R.A. and Dec. coordinates of any celestial
object using the Up
and Down Arrow keys,
overwriting the coordinates currently displayed. As soon as
the coordinates are
entered, Autostar
slews the telescope to
the coordinates. Note
that the telescope
must be initialized and
aligned for this procedure to operate properly.
However, if you wish
to store the coordinates of an object in
memory, use the
method described at
the right.
Although Autostar contains a database of more than 1400 celestial objects (stars, nebulae,
planets, etc.) that you can observe, you may eventually want to view objects that are not part
of the database. Autostar provides a feature that allows you to enter an object's R.A and Dec.
coordinates in the "User: Objects" option of the Object menu and allows automatic slewing of
the telescope to the user-entered coordinates.
In order to use this menu option, you first need to look up the R.A and Dec. coordinates of the
object or objects you wish to observe. Check out your local library, computer store, bookstore,
CD Roms, Internet, or magazines (such as Sky & Telescope or Astronomy), to find coordinates
of celestial objects. The objects/coordinates you enter become part of your own permanent
database, called "User Objects."
To enter coordinates of an object into the "User: Objects" option of the Object menu:
1.
Make sure Autostar has been initialized and the telescope has been aligned.
2.
After the telescope is aligned, "Select Item: Object" displays. (If necessary, use the Scroll
keys to scroll through the menus, as previously described, to find this option.) Press
ENTER.
3.
"Object: Solar System" displays. Keep pressing the Scroll Up key until "Object: User
Object" displays and press ENTER.
4.
"User Object: Select" displays. Press the Scroll Down key once. "User Object: Add" displays. Press ENTER.
5.
"Name" displays on the top line and a blinking cursor on the second line. Use the Arrow
keys, as previously described, to enter the name of the object you wish to add to the database. When you are finished, press ENTER.
6.
"Right Asc.: 00.00.0" displays. Use the Up and Down Arrow keys to enter the digits for the
Right Ascension coordinate of your object. When you are finished, press ENTER.
7.
"Declination: +00°.00'" displays. Use the Up and Down Arrow keys to enter the digits for
the Declination coordinate of your object. If necessary, use the Scroll Keys to change "+"
to "-." When you are finished, press ENTER.
8.
Autostar then prompts you to enter the size of the object. This step is optional. Use the Up
and Down Arrow keys to enter the size (in arc-minutes), if so desired, and press ENTER to
go to the next display. If you do not wish to enter this information, simply press ENTER.
9.
Autostar then prompts you to enter the magnitude of the object. This step is also optional.
Use the Up and Down Arrow keys to enter this information, if so desired, and press ENTER
to go to the next display. "User Object: Add" displays again.
To GO TO a user-entered object:
In this procedure, you will choose an object from the User Object list and GO TO the object.
1.
With "User Object: Add" displayed, press the Scroll Up key once. "User Object: Select" displays. Press ENTER.
2.
Use the Scroll keys (if necessary) to scroll to the desired object. Press ENTER.
3.
The name of the object and the Right Ascension and Declination coordinates display.
4.
Press GO TO and the telescope slews to the object.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
36
APPENDIX C
Observing Satellites
In this procedure, you will prepare your telescope to observe a satellite pass.
1.
Go to the "Object: Satellite" menu option and press ENTER.
2.
Use the Scroll keys to scroll through the list of satellites.
3.
Select a satellite from the list and press ENTER.
4.
"Calculating...." and then "Tracking..." displays. If the satellite is going to make a pass,
"Located" displays.
5.
Use the Scroll keys to display data about the pass: aos – acquisition of signal and los –
loss of signal. If you subtract the aos from the los, you can calculate how long the satellite
will be visible. Location information also displays.
6.
"Alarm" displays after the location information. Press ENTER and Autostar automatically
sets the alarm to sound a minute before the satellite's scheduled appearance. You may
return to regular observations until the alarm goes off.
7.
When the alarm goes off, return to the Satellite menu and press a Scroll key until the
desired satellite is on the top line of the display.
8.
Press GO TO. Autostar slews the telescope to where the satellite should appear. The
motor drive stops and a countdown is displayed.
NOTE: If the scheduled appearance position of the satellite is obstructed (i.e., by a
building, tree, or hill), press ENTER and Autostar starts to move the telescope along
the expected satellite track. When the track clears the obstruction, press ENTER
again to pause the telescope, then continue with this procedure.
9.
With about 20 seconds left on the countdown timer, start watching through the telescope
viewfinder for the satellite to enter the field of view.
10. When the satellite enters the viewfinder field of view, press ENTER. The telescope starts
to track with the satellite.
11. Use the Autostar Arrow keys to center the object in the viewfinder, then look through the
eyepiece to view the object.
Satellite orbits change and new satellites (including the Space Shuttle) are launched. Visit the
Meade website (www.meade.com) approximately once a month to get updated information
and instructions on how to download this data to Autostar. If orbital parameters are more than
one month old, the satellite pass may not happen at the time predicted by Autostar.
Downloading requires the optional #506 AstroFinder™ Software and Cable Connector Kit. See
OPTIONAL ACCESSORIES, page 29.
NOTE: Satellite observing is an exciting challenge. Most satellites are in low orbit,
travelling at approximately 17,500 mph. When visible, they move quickly across the
sky and are only in the field of view for a few minutes, requiring Autostar to slew the
telescope rapidly. Best viewing is near Sunrise or Sunset when the sky is still dark.
Viewing in the middle of the night can be problematic because the satellite may
pass overhead, but not be visible as it is in the Earth's shadow.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun.
Do not look through the telescope as it is moving.
37
APPENDIX D
Training the Drive
Train the telescope motors using Autostar. Perform this procedure if you are experiencing any pointing accuracy problems. Fig. 32 depicts the complete Drive Training procedure.
NOTE: Use a terrestrial object, such as a telephone pole or lamp post, to train the drive. Complete this
exercise once every 3 to 6 months to maintain the highest level of telescope pointing accuracy.
1
2
Verify that AUTOSTAR
INITIALIZATION is
complete.
Press MODE until
Select Item is displayed.
Select Item
Object
Press > until it
is centered
This manual gives only the briefest introduction to astronomy. If you are interested in pursuing further studies, a
few topics are suggested below that are worth reading up
on. Try looking up some of these topics in the Autostar
glossary.
3
Press < until it
is centered
Press the scroll
up key once.
Select Item
Setup
DS-2000 TIPS
12
Scope slews left.
Bring target back
to center using
ENTER the Right Arrow key.
4
13
Also below is a small sampling of books, magazines, and
organizations that you might find helpful.
Scope slews right.
Bring target back
to center using
ENTER the Left Arrow key.
Topics
1. How is a star born? How does a solar system form?
2. How is the distance to a star measured? What is a
light year? What is red shift and blue shift?
3. How are the craters on our Moon formed? How old
is the Moon and Earth? How old is the Sun?
4. What is a black hole? A neutron star?
5. What are stars made of? Why are stars different colors? What is a white dwarf? A red giant? Have we ever
seen the surface of a star besides our own Sun?
6. What is a nova? A supernova?
7. What are comets? Minor planets? Meteors? Meteor
showers? Where do they come from?
8. What is a planetary nebula? A globular cluster?
9. What is the Big Bang? Is the universe expanding or
contracting, or does it always remain the same?
What is dark matter?
10. What is an extrasolar planet? What is an accretion
(or protoplanetary) disk?
11. What is the difference between an elliptical, a spiral,
and an irregular galaxy?
Books
1. The Guide to Amateur Astronomy by Jack Newton
and Philip Teece
Access the Setup
ENTER menu.
Setup
Align
Train Drive
Az. Train
14
Menu returns to
Az. training.
5
Multiple presses.
Train Drive
Alt. Train
Setup
Telescope
15
Altitude
6
ENTER (vertical)
training.
Access the
ENTER Telescope menu.
Telescope
7
1
Telescope Model
Drive Setup
For this op. . .
16
Reminder to
ENTER use terrestrial
target.
Multiple presses.
Center reference
17
object
Telescope
Train Drive
8
Center target
ENTER using Arrow
keys.
Choose the Train
ENTER Drive option.
Train Drive
Az. Train
9
Azimuth
ENTER (horizontal)
>
Press until it
is centered
Scope slews down.
Bring target back
to center using
ENTER the Up Arrow key.
training.
Press until it
is centered
>
Drive Setup
For this op. . .
10
Reminder to
ENTER use terrestrial
target.
ENTER
Train Drive
Az. Train
MODE
19
20
Multiple presses.
Select Item
Object
2.
The Sky: A User’s Guide by David Levy
3.
Turn Left at Orion by Guy Consolmagno & Dan Davis
4.
Scope slews up.
Bring target back
to center using
ENTER the Down Arrow key.
Center reference
11
object.
Center target
using Arrow
keys.
18
21
Fig. 32: Training the Drive Procedure.
Astrophotography for the Amateur by Michael
Covington
Magazines
1. Sky & Telescope
Box 9111, Belmont, MA 02178
2. Astronomy
Box 1612, Waukesha, WI 53187
Organizations:
1. Astronomical League
Executive Secretary
5675 Real del Norte, Las Cruces, NM 88012
2. The Astronomical Society of the Pacific
390 Ashton Ave, San Francisco, CA 94112
3. The Meade 4M Community
www.meade4M.org.
And watch Jack Horkheimer, Star Gazer, on your local
PBS station.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.
38
APPENDIX E
Changing the LNT Battery
The LNT Module uses a lithium coin CR2023 battery that will last about 5 years and
is installed with the original LNT Module assembly. After you replace the battery, you
will need to recalibrate the telescope’s sensors and reset the time and date. You will
need a new battery. Also, you may use Meade’s optional Atomic Time Update
Module, although this is not necessary.
Update
port
To replace the battery:
Alignment
screw
Fig. 33: The LNT Module, with one of
the alignment screws and Atomic
Time Update port visible.
Top Alignment
Atomic Time
screw
Update Port
Spring
Side
Alignment
screw hole
Fig. 34: Interior side view of LNT
Module.
Top Alignment
screw hole
Cover
Side
Alignment
screw hole
Battery
1. Remove the top alignment screw cap/long bolt from the LNT Module. See Fig.
33.
2. Remove the side alignment screw cap/long bolt from the LNT Module. Take
note that there are two springs inside the LNT. One spring sits between the top
and bottom of the unit. The second spring is on the side of the unit that rests
between the bottom and the top sections. One long bolt passes through the top
spring and the other long bolt passes through the side spring. Set the springs
aside as you will need to replace it later in this assembly . See Fig. 33 and 34.
Important Note: Note there is some wiring inside the LNT Module. Be careful
not to pull on the wiring. If it is necessary to move the wiring aside, do so
carefully.
3. Carefully lift the top section of the unit from the bottom section. Do not remove
the bottom section or disassemble the rest of the unit.
4. Remove the old battery. Note the spring.
5. Insert the new (user-supplied) battery. Take care to orient the battery so that the
side with the battery markings is facing the top.
6. Replace the top spring in place and the LNT Module cover.
7. Replace the top bolt and tighten the cap to a firm feel.
8. Hold the side spring in place with your fingers and slide the spring between
between the top and bottom sections. The spring should line up with the
mounting holes for the side long bolt. Slide the long bolt through the side hole,
then through the spring and finally through the bottom of the LNT Module and
tighten to a firm feel.
9. Next, follow the instructions included with the Atomic Time Update Module
optional accessory to reset the clock.
OR
Enter the date and time manually using the Date and Time options in the Setup
menu.
Note: You may find it useful to recalibrate the LNT Module sensors after changing the battery.. You will find the Calibrate Sensors in the Setup: Telescope
menu.
Spring
Fig. 35 Interior top view of
SmartFinder unit.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or
near the Sun. Do not look through the telescope as it is moving.
39
APPENDIX F
How to manually set the date to March 6, 2005:
1. Press ON/OFF to turn on the control panel.
2. Press the button prompted by the control panel to show that the Sun warning has been
read and understood. Press ENTER to bypass Getting Started message.
3. Keep pressing MODE until “Select Item: Object” displays.
4. Keep pressing the Scroll Down key until “Select Item: Setup” displays. Press ENTER.
5. Keep pressing the Scroll Down key until “Setup: Date” displays. Press ENTER.
6. "Enter Date: 01-JAN-2003" displays. "0" is highlighted by a blinking cursor. Press the
Right Arrow key to move to the next position.
7. "1" is now highlighted. Press the Scroll Up key until "6" displays in this position. Press the
Right Arrow key to move to the next position.
8. "JAN" is now highlighted. Press the Scroll Up key until "MAR" displays. Press the Right
Arrow key to move to the next position.
9. "2" is now highlighted. The date display now reads "06 MAR 2003." Press the Right Arrow
key three times until the “3” is highlighted.
10. Press the Scroll Up key until "5" displays in this position. Press ENTER. The date is now
entered.
How to manually set the time to 11:30 p.m.:
If you have just set the date, “Setup: Date” displays. Press DOWN once and “Setup: Time” displays. Then proceed to step #6. below.
If you have not yet turned on your control panel, begin with step #1.
1. Press ON/OFF to turn on the control panel.
2. Press the button prompted by the control panel to show that the Sun warning has been
read and understood. Press ENTER to bypass Getting Started message.
3. Keep pressing MODE until “Select Item: Object” displays.
4. Keep pressing the Scroll Down key until “Select Item: Setup” displays. Press ENTER.
5. Keep pressing the Scroll Down key until “Setup: Time” displays. Press ENTER.
6. "Enter Time: 08:00:00AM" displays. The leftmost "0" is highlighted. Press the Scroll Up
key until "1" displays. Press Press the Right Arrow key to move to the next position.
7. "8" is highlighted. Press Press the Scroll Up key until "1" displays. Press the Right Arrow
key to move to the next position.
8. "0" is highlighted. Press Press the Scroll Up key until "3" displays.
9. Keep pressing the Right Arrow key until "AM" is highlighted. Press the Scroll Up key until
"PM" displays. Press ENTER.
10. The time display now reads "11:30:00PM." The time is now entered.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
40
APPENDIX G
Fast
Medium
Moderate
Slow
Fig. 36: Electronic Controller. (1) Arrow Keys; (2) Indicator
Lights; (3) SPEED Key; (4) Coil Cord; (5) MODE Key; (6) OUT
Key; (7) IN Key.
Electronic Controller (DS-2000EC Users Only)
DS-2000 "EC" models come equipped with an Electronic Controller handbox, rather than the
Autostar Handbox. The Electronic Controller provides you with the means to control the telescope
motors from a compact handbox. The Electronic Controller (Fig. 36) has soft-touch keys designed to
have a positive feel, even through gloves.
Functions of the Electronic Controller include:
Slewing (moving) the telescope's optical tube assembly to an object.
■
■
When used with the optional #1240 Electric Focuser, moves the focus of the eyepiece. See the
#1240 Electric Focuser Instruction Sheet for more information.
1
Arrow Keys (1, Fig. 36): Press one of the four Arrow keys to slew the telescope (i.e., up, down,
left, and right) at any one of four slew speeds (see SPEED KEY below).
Important Note: If you reverse directions while using the Arrow keys to slew to objects,
there may be a slight pause as the telescope motors compensate for the reversal of the
internal gears.
2
Indicator Lights (2, Fig. 36): The four red LED (Light Emitting Diode) lights indicate the current
slew speed of the telescope.
3
SPEED Key (3, Fig. 36): Press the SPEED key to change the speed at which the telescope
slews to an object. Each press of the SPEED key changes the slew speed to the next slower
setting. If the controller is already on the slowest slew speed (light 4), pressing the SPEED key
cycles back to the highest speed (light 1). Slew speeds are signified by the indicator lights
(2, Fig. 36).
4
Coil Cord: Plug into the HBX connector of the Computer Control Panel.
5
MODE Key (5, Fig. 36): Not used with the DS-2000 telescopes.
6
OUT Key (6, Fig. 36): When using the optional #1240 Electric Focuser (see OPTIONAL ACCESSORIES, page 29), press the OUT key to move the focus point outward.
7
IN Key (7, Fig. 36): When using the optional #1240 Electric Focuser (see OPTIONAL ACCESSORIES, page 29), press the IN key to move the focus point inward.
Telescope Mounting
A mount allows a telescope to move on its axes. All DS-2000 telescopes use an Altazimuth mounting. The Electronic Controller is factory pre-set to the Alt/Az mode.
Altazimuth (Alt/Az) mounting permits movement of the telescope tube in vertical (altitude) and horizontal (azimuth) directions, and is ideal for terrestrial applications and for casual astronomical observation. The Electronic Controller Arrow keys permit pushbutton movements (slewing) of the telescope. To manually track objects with the telescope in the Altazimuth configuration, press the Arrow
keys of the Electronic Controller as necessary to keep an object centered.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
41
Slew Speeds
The Electronic Controller has four slew speeds that are directly proportional to the sidereal rate (see
page 15 for more information). Press the Speed key to change the slew speed. Note each slew
speed corresponds to one of the four LED's of the Electronic Controller.
Light 1 (top LED): The fastest speed. Use to move the telescope quickly from one point in the sky to
another.
Light 2: Best for centering an object in the viewfinder.
Light 3: Best for centering an object in the field of a low-to-moderate-power eyepiece, such as the
standard SP 26mm.
Light 4: The slowest speed. Use to center an object in the field of view of high-power eyepieces,
such as a 9mm eyepiece.
The four available speeds are:
Light 1 = 1200 x sidereal (300 arc-min/sec or 5°/sec)
Light 2 = 180 x sidereal (45 arc-min/sec or 0.75°/sec)
Light 3 = 32 x sidereal (8 arc-min/sec or 0.13°/sec)
Light 4 =
8 x sidereal (2 arc-min/sec or 0.034°/sec)
The two slowest speeds (8x and 32x sidereal) can be used for pushbutton (manual) tracking of astronomical objects while observing through the eyepiece.
To move the telescope using the Electronic Controller:
1. Set the telescope on a level surface.
2. Insert a low-power eyepiece (e.g., 25mm) into the eyepiece holder (2, Fig. 1) or diagonal prism
(3, Fig. 1) and tighten the eyepiece thumbscrew.
3. Tighten the Altitude lock (10, Fig. 1) and the tripod base lock knob (26, Fig. 1), if necessary.
4. Verify that the power switch (C, Fig. 1c) on the telescope’s Computer Control panel is OFF.
5. Plug in the Electronic Controller coil cord (4, Fig. 36) to the HBX port (A, Fig. 1c) on the
Computer Control panel.
6. Flip the power switch to ON. The power indicator (B, Fig. 1c) on the Computer Control panel
lights and all four speed indicators (2, Fig. 36) blink rapidly.
7. Press any key on the Electronic Controller and the telescope slews momentarily in the vertical
and horizontal directions to test the motors.
8. When the test is complete, light 1 remains on; lights 2, 3, and 4 turn off.
9. Use the four Arrow keys (1, Fig. 36) to slew the telescope to the desired object. To change the
slew speed, press the SPEED key.
10. Fine-adjust the position of the object with the Electronic Controller Arrow keys so that it is centered in the viewfinder. The object is now ready to be viewed through the telescope’s eyepiece.
Optional #494 Autostar™ Computer Controller for DS-2000EC Users
One of the most important advances in telescope control in the past 25 years, the Meade #494
Autostar Computer Controller turns your DS-2000EC model into an automatic celestial object locating system. Just plug Autostar into the telescope’s HBX port in place of the standard-equipment
Electronic Controller, do a quick telescope alignment, and you are ready to observe any object in the
Autostar’s 1400-object database.
Best of all, the Meade Autostar is easy to use. Even the most novice observer will locate dozens of
fascinating celestial objects the very first night out. Study Saturn and its ring system; the primary
cloud belts of Jupiter as well as its four major satellites; the moon-like phases of Mercury and Venus;
prominent features on Mars. The Moon stands out in stark, almost three-dimensional detail —
craters, mountain ranges, and fault lines. In our galaxy, the telescope displays hundreds of nebulae,
star clusters, double and multiple stars, and variable stars — plus dozens of external galaxies in all
their variation of form and structure.
Any of Autostar’s database objects can be called up and entered on the hand controller display in
seconds. The observer then simply presses the GO TO pushbutton and watches as the telescope
automatically slews to the object and places it in the field of view. Autostar moves the telescope to
automatically track (follow) the object across the sky. Autostar brings into easy access objects that
were previously unreachable for all but the most dedicated of amateur astronomers.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
42
BASIC ASTRONOMY
In the early 17th century Italian Scientist Galileo, using a telescope smaller than your DS-2000
model, turned it skyward instead of looking at the distant trees and mountains. What he saw,
and what he realized about what he saw, has forever changed the way mankind thinks about
the universe. Imagine what it must have been like being the first human to see moons revolve
around the planet Jupiter or to see the changing phases of Venus! Because of his observations,
Galileo correctly realized Earth's movement and position around the Sun, and in doing so, gave
birth to modern astronomy. Yet Galileo's telescope was so crude, he could not clearly make out
the rings of Saturn.
Galileo's discoveries laid the foundation for understanding the motion and nature of the planets, stars, and galaxies. Building on his foundation, Henrietta Leavitt determined how to measure the distance to stars, Edwin Hubble gave us a glimpse into the possible origin of the universe, Albert Einstein unraveled the crucial relationship of time and light, and 21st-century
astronomers are currently discovering planets around stars outside our solar system. Almost
daily, using sophisticated successors to Galileo's telescope, such as the Hubble Space
Telescope and the Chandra X-Ray Telescope, more and more mysteries of the universe are
being probed and understood. We are living in the golden age of astronomy.
Unlike other sciences, astronomy welcomes contributions from amateurs. Much of the knowledge we have on subjects such as comets, meteor showers, variable stars, the Moon, and our
solar system comes from observations made by amateur astronomers. So as you look through
your Meade DS-2000 telescope, keep in mind Galileo. To him, a telescope was not merely a
machine made of glass and metal, but something far more—a window through which the beating heart of the universe might be observed.
Autostar Glossary
Be sure to make use of Autostar’s Glossary feature. The Glossary menu provides an alphabetical listing of definitions and descriptions of common astronomical terms. Access directly
through the Glossary menu or through hypertext words embedded in Autostar. See GLOSSARY MENU, page 24, for more information.
Objects in Space
Listed below are some of the many astronomical objects that can be seen with the DS-2000
Series Telescope:
The Moon
The Moon is, on average, a distance of 239,000 miles (380,000km) from Earth and is best
observed during its crescent or half phase when Sunlight strikes the Moon’s surface at an
angle. It casts shadows and adds a sense of depth to the view (Fig. 37). No shadows are seen
during a full Moon, causing the overly bright Moon to appear flat and rather uninteresting
through the telescope. Be sure to use a neutral Moon filter when observing the Moon. Not only
does it protect your eyes from the bright glare of the Moon, but it also helps enhance contrast,
providing a more dramatic image.
Fig. 37: The Moon.
Note the deep shadows in the craters.
Brilliant detail can be observed on the Moon, including hundreds of lunar craters and maria,
described below.
Craters are round meteor impact sites covering most of the Moon’s surface. With no atmosphere on the Moon, no weather conditions exist, so the only erosive force is meteor strikes.
Under these conditions, lunar craters can last for millions of years.
Maria (plural for mare) are smooth, dark areas scattered across the lunar surface. These dark
areas are large ancient impact basins that were filled with lava from the interior of the Moon by
the depth and force of a meteor or comet impact.
Twelve Apollo astronauts left their bootprints on the Moon in the late 1960's and early 1970's.
However, no telescope on Earth is able to see these footprints or any other artifacts. In fact, the
smallest lunar features that may be seen with the largest telescope on Earth are about one-half
mile across.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
43
Planets
Planets change positions in the sky as they orbit around the Sun. To locate the planets on a
given day or month, consult a monthly astronomy magazine, such as Sky and Telescope or
Astronomy. You can also consult Autostar for information about planets. Scroll to the "Object:
Solar System" menu and scroll through the lists of planets. When a planet you are interested
in displays, press ENTER. Use the Scroll keys to display information about the planet, such as
the planet's coordinates, and the rise and set times (Tip: enter a date in the Date menu and
you can determine if a planet(s) will be visible during the night of the entered date by checking
its rise and set times). Listed below are the best planets for viewing through the DS-2000
Series.
Fig. 38: Jupiter and
its four largest
moons. The moons
can be observed in
a different position
every night.
Fig. 39: Saturn has
the most extensive
ring structure in our
Solar System.
Venus is about nine-tenths the diameter of Earth. As Venus orbits the Sun, observers can see
it go through phases (crescent, half, and full) much like those of the Moon. The disk of Venus
appears white as Sunlight is reflected off the thick cloud cover that completely obscures any
surface detail.
Mars is about half the diameter of Earth, and appears through the telescope as a tiny reddishorange disk. It may be possible to see a hint of white at one of the planet’s Polar ice caps.
Approximately every two years, when Mars is closest to Earth in its orbit, additional detail and
coloring on the planet's surface may be visible.
Jupiter is the largest planet in our solar system and is 11 times the diameter of Earth. The planet appears as a disk with dark lines stretching across the surface. These lines are cloud bands
in the atmosphere. Four of Jupiter’s moons (Io, Europa, Ganymede, and Callisto) can be seen
as “star-like” points of light when using even the lowest magnification (Fig. 38). These moons
orbit Jupiter so that the number of moons visible on any given night changes as they circle
around the giant planet.
Saturn is nine times the diameter of Earth and appears as a small, round disk with rings
extending out from either side (Fig. 39). In 1610, Galileo, the first person to observe Saturn
through a telescope, did not understand that what he was seeing were rings. Instead, he
believed that Saturn had “ears.” Saturn’s rings are composed of billions of ice particles ranging in size from a speck of dust to the size of a house. The major division in Saturn's rings,
called the Cassini Division, is occasionally visible. Titan, the largest of Saturn’s moons can also
be seen as a bright, star-like object near the planet.
Deep-Sky Objects
Star charts can be used to locate constellations, individual stars and deep-sky objects.
Examples of various deep-sky objects are given below:
Fig. 40: The
Pleiades is one of
the most beautiful
open clusters.
Stars are large gaseous objects that are self-illuminated by nuclear fusion in their core.
Because of their vast distances from our solar system, all stars appear as pinpoints of light,
irrespective of the size of the telescope used.
Nebulae are vast interstellar clouds of gas and dust where stars are formed. Most impressive
of these is the Great Nebula in Orion (M42), a diffuse nebula that appears as a faint wispy gray
cloud. M42 is 1600 light years from Earth.
Open Clusters are loose groupings of young stars, all recently formed from the same diffuse
nebula. The Pleiades is an open cluster 410 light years away (Fig. 40).
Constellations are large, imaginary patterns of stars believed by ancient civilizations to be the
celestial equivalent of objects, animals, people, or gods. These patterns are too large to be
seen through a telescope. To learn the constellations, start with an easy grouping of stars, such
as the Big Dipper in Ursa Major. Then, use a star chart to explore across the sky.
Galaxies are large assemblies of stars, nebulae, and star clusters that are bound by gravity.
The most common shape is spiral (such as our own Milky Way), but galaxies can also be elliptical, or even irregular blobs. The Andromeda Galaxy (M31) is the closest spiral-type galaxy to
our own. This galaxy appears fuzzy and cigar-shaped. It is 2.2 million light years away in the
constellation Andromeda, located between the large “W” of Cassiopeia and the great square of
Pegasus.
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.
44
Refracting Telescopes use a large objective lens as their primary
light-collecting element. Meade refractors, in all models and apertures,
include achromatic (2-element) objective lenses in order to reduce or
virtually eliminate the false color (chromatic aberration) that results in
the telescopic image when light passes through a lens.
Reflecting Telescopes use a concave primary mirror to collect light
and form an image. In the Newtonian type of reflector, light is reflected
by a small, flat secondary mirror to the side of the main tube for
observation of the image.
Eyepiece
F
2-Element
Objective Lens
Refracting Telescope
In the refracting telescope, light is collected by a 2-element objective
lens and brought to a focus at F.
Secondary
Mirror
Concave
Mirror
Reflecting Telescope
F
Eyepiece
In contrast, the reflecting telescope uses a concave mirror for this
purpose.
MEADE LIMITED WARRANTY
Every Meade telescope, spotting scope, and telescope accessory is warranted by Meade Instruments Corporation (“Meade”)
to be free of defects in materials and workmanship for a period of ONE YEAR from the date of original purchase in the U.S.A.
and Canada. Meade will repair or replace a product, or part thereof, found by Meade to be defective, provided the defective
part is returned to Meade, freight-prepaid, with proof of purchase. This warranty applies to the original purchaser only and is
non-transferable. Meade products purchased outside North America are not included in this warranty, but are covered under
separate warranties issued by Meade international distributors.
RGA Number Required: Prior to the return of any product or part, a Return Goods Authorization (RGA) number must be
obtained from Meade by writing, or calling (800) 626-3233. Each returned part or product must include a written statement
detailing the nature of the claimed defect, as well as the owner’s name, address, and phone number.
This warranty is not valid in cases where the product has been abused or mishandled, where unauthorized repairs have been
attempted or performed, or where depreciation of the product is due to normal wear-and-tear. Meade specifically disclaims
special, indirect, or consequential damages or lost profit which may result from a breach of this warranty. Any implied warranties
which cannot be disclaimed are hereby limited to a term of one year from the date of original retail purchase.
This warranty gives you specific rights. You may have other rights which vary from state to state.
Meade reserves the right to change product specifications or to discontinue products without notice.
This warranty supercedes all previous Meade product warranties.
(800) 626-3233
www.meade.com
14-7186-01 05/05
Download PDF