Meade ETX-90PE User Manual

Instruction Manual
ETX®Premier Edition Telescope Series
AutoStar®— LNT™— SmartFinder
WARNING!
Never use a Meade 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 as it is moving. adult supervision while observing.
Caution: Use care to install batteries in the orientation indicated by illustration in the battery slots of 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.
If you are anxious to use your telescope for the first time, read the QUICK-START GUIDE on pages 4 and 5.
The name "Meade
®
ks registered with the U
ademar
are tr principal countries throughout the world.
“LNT [Level North Technology],” “SmartFinder,” “Deep Sky Imager,” “LPI,” and “Tonight’s Best” are trademarks of Meade Instruments Corporation.
Patents: US 6,304,376 US 6,392,799 US 6,563,636 D 422,610 Patent Pending
2004 Meade Instr
©
®
ETX®PE Telescope to
Children should always have
“ETX,” “AutoStar” and the Meade logo
,"
. Patent Office and in
.S
uments Cor
poration.
CONTENTS
elescope Features ...................................................... 6
T
Getting Started ..............................................................12
Parts Listing ..............................................................12
w to Assemble Your Telescope & Tripod ..............12
Ho
Using SmartFinder, Aligning SmartFinder ................13
Choosing an Eyepiece..............................................14
Observing ......................................................................15
Observing by Moving the Telescope Manually..........15
Terrestrial Observing ................................................15
Observing Using AutoStar's Arrow Keys ..................15
Slew Speeds ............................................................16
Astronomical Observing, Observe the Moon............16
To Track an Object Automatically ..............................16
ving Through AutoStar’s Menus......................16
Mo
Initializing AutoStar for the First Time..................17
Automatic Alignment............................................17
Observe a Star Using Automatic Tracking ..........18
Go To Saturn, Using the Guided Tour ................19
Basic AutoStar Operation ..............................................20
AutoStar Navigation Exercise ..................................20
Entering Data, Moving Through AutoStar’s Menus ..21
AutoStar Menus ............................................................22
Menu Tree ................................................................22
Objects Menu............................................................23
Event Menu, Glossary Menu ....................................24
Utilities Menu ............................................................25
Setup Menu ..............................................................26
Advanced AutoStar Operation........................................29
Adding Observing Sites ............................................29
Finding Objects Not in the Database........................30
Observing Satellites ..................................................30
Create Your Own Guided Tour ..................................31
Landmarks ................................................................34
Identify ......................................................................35
Advanced Alt/Az Alignment Methods........................36
Smart Drive Training (PEC) ......................................37
......................................................................
wse
Bro
Photography ..................................................................39
Photography with AutoStar Suite ..............................41
Optional Accessories......................................................42
Maintenance ..................................................................44
Troubleshooting ........................................................45
Specifications
Appendix A: Equatorial (Polar) Alignment ......................50
Equatorial Alignment, Celestial Coordinates ............50
olar Mounting with #884 Delux
P
Equatorial Mounting Procedure ................................51
To Track a Star When Polar Mounted........................51
Polar Alignment Modes, Locating Celestial Pole ......52
Setting Circles
Appendix B: Latitude Chart ............................................54
Appendix C: Training the Drive ......................................55
Appendix D: Changing the LNT Module Battery ............56
Appendix E: Basic Astronomy........................................57
................................................................47
ipod..........50
r
T
e Field
..........................................................
38
53
QUICK-START GUIDE
2
This Quic keys. If you wish to try out AutoStar’s “Go To” capabilities, check out the list of page references at the bottom of the following page.
k Start Guide demonstrates how to install the batteries and eyepiece, and how to observe using the AutoStar Arrow
B
A
Remove the ETX®telescope from its packaging and place it on a sturdy surface. Place the ETX on its side and remove the battery compartment cover ( side of the drive base. Insert eight (user-supplied) AA-size batteries into the battery compartment ( shown in the battery compartment. Replace the cover and return the telescope to an upright position (if you wish to attach the telescope to the deluxe field tripod, see page
12).
A) from the under-
B) oriented as
C
D
E
H
...and the other end of the coiled cord into the coiled cord port at the bottom of AutoStar handbox (
I
Tighten (to a "firm feel" only, do not overtighten) the vertical lock
I) and the horizontal lock (J).
( mation.
See page 7 and 8 for more infor-
H), as shown above.
J
Place the 26mm eyepiece (C) into the eyepiece holder on the telescope and tighten the attachment thumbscrew (D) to a "firm feel" only. See page 7, for more information. Remove the dust co
er (E) from the end of the telescope tube
v
.
F
Flip the Power Switch (F) on the computer control panel to
ight message lights on AutoStar’s
yr
A cop
G
Make sure that the computer control panel power switch (
F) is in the OFF position. Remove the Autostar®handbox
and the coiled cord from the pac end of the cord into the HBX port (G).
king mater
ials
F
Plug one
.
the ON LCD display, followed by a warning not to look at the Sun. Press the AutoStar key prompted by the message when you are done reading.
A “Getting Started” message displays. Press ENTER to skip this message.
See pages 9 to 11 for more information about AutoStar’s keys.
position.
4
Enter
ey
K
Scroll Up Key
AutoStar then displays: “Location Option: 1-Zipcode 2-City”. This option allows you to choose how you wish to enter the location of your observing site: you can enter your zip code or choose the site from a list of countries, states and cities.
Press the number key “1” if you wish to enter by zip code. Then enter the five digits of the zip code of your observing site and press ENTER.
Press the number key “2” if you wish to select your observing site from a list of country, states and cities. First, use a Scroll key to cycle through the list of countries and states (listed alphabetically). Press ENTER when the correct location displays. Next, use a Scroll key to cycle through the list of cities (also listed alphabetically). Press ENTER when the closest city displays.
Finally “Telescope Models” displays. Using the SCROLL KEYS, cycle through the list of telescope models and press ENTER when your model displays.
The display now displays "Setup: Align." See page 17 for more information.
If AutoStar does not requests the Country/State, City and Telescope Model information, use the "Telescope Model" and "Site" options in the Setup menu to change this information. See pages 27 and 29 for more information.
Arrow Keys
Scroll Down Key
Arro Keys
w
o change the speed at which the telescope moves (known as
T
“slew” speed) press a NUMBER KEY from 1 through 9. 1
the is the slowest speed and 9 is the fastest.
L
K
Make sure that the flip mirror control (K) is in the “Up” position, as shown the diagram above.
L
Sight along the side of the telescope’s main tube to locate an object. If you wish to learn how to align the telescope’s SmartFinder, see page 13.
Use the telescope’s focus knob ( focus.
L) to bring the object into
Number
ys
e
K
You can now use the Arrow keys to slew (move) the telescope up KEYS to center objects in the eyepiece.
, down, right or left. Practice using the ARROW
If you wish to learn more about observing with
utoStar and other f
A
age 13 to lear
P
age 17 to lear
P
age 19 to lear
P Page 19 to learn about Guided Tours Page 22 for a Menu tree of AutoStar’s menus
ages 23 to 38 to
P
eatures of your telescope, see
w to use Smar
n ho
w to perf
n ho n how to “Go To” Saturn”
n more about A
lear
tFinder
m an Automatic Alignment
or
utoStar’
s men
:
us
5
TELESCOPE FEATURES
2
19
5
9
11
12
Fig. 1a: Side View
Features of the ETX-90PE, ETX­105PE and ETX-125PE are identical, with the exception of the size of optical tube.
Fig. 1a, b and Fig. 2:
The ETX Premier Telescope
17
1
E
16
B C D
A
B
13
10
10
Fig. 2 (Inset): Computer Control Panel. (A) On/Off switch; (B) Auxiliary ports; (C) Handbox port; (D) 12v connector; (E) Power indicator light.
2
18
1
3
4
1 Eyepiece
SmartFinder
2 3 Holder Thumbscrew 4 90° Eyepiece Holder 5 Optical Tube 6 Vertical (Dec.) Lock 7 Fork Arms 8 Focus Knob 9 Horizontal (R.A.) Lock
10 Computer Control Panel
A. ON/OFF Switch B. Auxiliary Ports (2) C. Handbox Port D. 12v E. LED
11 Base Housing 12 Battery Compartment
(bottom of base)
13 Right Ascension (R.A.)/
Horizontal Setting Circle 14 Flip-Mirror Control Knobs 15 Photo Port 16 Declination (Dec.)/Vertical
Setting Circle 17 SmartFinder Alignment Screws
LNT Module
18
Dust Cap (not visible)
19
16
7
13
Fig.
1b:
Rear
6
15
8
14
View
6
Caution:
Using products other than standard Meade accessories may cause damage to the telescope’s internal electronics and may void the Meade warranty.
B Want to learn more
about the available for your ETX telescope?
See OPTIONAL
CCESSORIES
A
42 and 43.
eyepieces
, pages
c Want to learn more
about the SmartFinder?
See Aligning
SmartFinder, page 13.
G Want to learn more
about the Right Ascension and Declination setting
? See page 54.
circles
Caution:
When loosening the Dec. lock, be sure to support the optical tube (5 Fig. 1a). The weight of the tube could cause the tube to swing through the fork arms suddenly.
MEADE ETX: YOUR PERSONAL WINDOW TO THE UNIVERSE
The Meade Premier Edition ETX-90PE, ETX-105PE and the ETX-125PE are extremely versatile, high-resolution telescopes. With pushbutton controls, automatic tracking of celestial objects and diffraction-limited imaging, an ETX Premier telescope may be all the telescope ever required by many terrestrial and astronomical observers.
Your ETX telescope reveals nature in an ever-expanding level of detail. Observe the feather structure of an eagle from 50 yards or study the rings of the planet Saturn from a distance of 800 million miles majestic nebulae, ancient star clusters, remote galaxies and even stars recently discovered to have planets orbiting about them. Meade ETX Premier telescopes are instruments fully capable of growing with your interest and are ideal for both the casual observer and serious astronomer alike.
Telescope Controls
Become acquainted with all of these controls before attempting observations through the telescope.
B Eyepiece: Place the supplied 26mm eyepiece into the 90° Eyepiece Holder (4,
Fig. 1b
) and tighten in place with thumbscrew (3, Fig.1b).
C
Smartfinder™
Provides an easier way to sight on objects than the main telescope’s eyepiece which has a narrow field of view. Comes pre-assembled on the telescope.
D Eyepiece Holder Thumbscrew: Tightens the eyepiece in place. Tighten to a firm
feel only.
e 90° Eyepiece Holder: Holds the eyepiece upright for easy viewing. F Optical Tube: The main optical component that gathers the light from distant
objects and brings this light to a focus for examination with the eyepiece.
G Vertical (Dec.) Lock: Controls the manual vertical movement of the telescope.
Turning the vertical lock counterclockwise unlocks the telescope enabling it to be freely rotated by hand about the vertical axis. Turning the vertical lock clockwise (to a firm feel only) prevents the telescope from being moved manually, but engages the vertical motor drive clutch for AutoStar operation. When polar aligned, the ver
ote:The v
N
ight of the f
the r cular scale without n setting circle ( scale used to locate astronomical objects
tical lock serves as the Declination or Dec. lock.
tical loc
er
ocus knob (
Fig.
16,
H Fork Arms: Hold the optical tube in place.
Note: The telescope base and fork mount are designed with internal “rotational limit stops from rotating more than 630° to avoid damage to the internal wiring. The vertical limit stop prevents the smartfinder from striking the fork mount when the telescope is pointed upward just past 90° and prevents the optical tube from striking the base if pointed downward more than 30°. Do
orce the telescope to mo
not f telescope will result.
i Focus Knob: Moves the telescope’s primary mirror in a finely-controlled motion
to achieve precise image focus. The ETX telescopes can be focused on objects from a distance of about 11.5 ft (ETX-90PE) or 15 ft (ETX-105PE or ETX-125PE) to infinity. Rotate the focus knob clockwise to focus on distant objects and counterclockwise to focus on nearby objects.
. Focus beyond the Solar System and observe
k knob is a kn
8,
umbers
1a
) on the opposite f
.” The horizontal limit stop prevents the telescope
urled knob located on the fork arm to
1b
Fig.
.
v
Mounted beneath the knob is a cir
).
Do not confuse this scale with the Dec.
m which has a n
k ar
or
.
ond these stops or damage to the
y
e be
umbered
-
7
Definitions
Throughout this manual,
you will notice the terms
"Alt/Az," "Right
Ascension," and
Declination." Alt/Az or
"
more properly, altazimuth,
is frequently used to refer to
altitude or Declination (the
up-and-down vertical
movement of the telescope)
and
azimuth or Right
Ascension (the side-to-side
horizontal movement of the
telescope). Right Ascension
is abbreviated as "
and Declination as "Dec."
Fig. 3a: Flip mirror control in the “up” position.
Fig. 3b: Flip mirror control in the “down” position.
ant to lear
1* W
aligning the SmartFinder
See pages 13.
R.A."
n more about
?
1( Note: The dust cap
should be replaced after each obser session and the power turned off to the telescope that any dew that might have collected during the observing session has evaporated prior to replacing the dust
. Do not
cap
tighten.
er
v
o
ving
erify
V
.
j Horizontal (R.A.) Loc
Loosen the horizontal lock counterclockwise to unlock the telescope, enabling it to be freely rotated by hand about the horizontal axis. Tightening the horizontal lock clockwise prevents the telescope from being rotated manually, but engages the hor-
ontal motor drive clutch for AutoStar operation. When polar aligned, the horizon-
iz tal lock serves as the Right Ascension or R.A. lock.
k:Controls the manual horizontal rotation of the telescope.
1) Computer Control Panel (see Fig. 2)
A. ON/OFF Switch
handbox ON or OFF.
Note: Always remove the batteries if they are not to be used for a long
period of time.
B. Auxiliary (AUX) Ports (2): Provide connection for current and future
Meade accessories. See
C. Handbox (HBX) Port: Plug the AutoStar handbox into this port. D. 12v: The 12v connector is designed to accept an external power
supply such as the optional #541 AC Adapter or the #607 Power Cord
OPTIONAL ACCESSORIES, page 42). When one of the external
(see power supply options is used, the internal batteries are disconnected from the power circuit.
E. LED: The red power indicator light illuminates when power is supplied
to the connected handbox and to the telescope’s motor drive.
: Turns the Computer Control Panel and AutoStar
OPTIONAL ACCESSORIES
, page 42.
1! Base Housing: Supports the telescope for placement on a flat, level surface,
such as a tabletop or tripod.
1@ Battery Compartment (not shown, underneath base): Install eight
user-supplied AA batteries in this compartment. See page 12 for more information.
1# Right Ascension (R.A.) Setting Circle: See page 53 for detailed information. 1$ Flip-Mirror and Flip-Mirror Control Knobs: ETX telescopes include an internal
mirror.With the flip-mirror control in the “up” position, as shown in diverted to the eyepiece. With the flip-mirror control in the “down” position, as shown in PHOTOGRAPHY, page 39.
1% Photo P
optional #64ST T-Adapter or attach the #932 Erecting Prism for correctly oriented images through the eyepiece. See
Fig. 3b, light proceeds straight out the photo port for photography. See
Note: The flip-mirror control is in the “up” position when the control is vertical (perpendicular to the telescope tube). To place the flip-mirror in the
position, turn the control until it is horizontal.
wn”
“do
or
t
:
Attach an
y 35mm camer
a with a removable lens to this port using an
OPTIONAL ACCESSORIES, page 42.
Fig. 3a, light is
1^ Declination (Dec.) Setting Circle (on left fork arm): See page 53 for detailed
information.
1& SmartFinder Alignment Screws: Adjust these screws to align the SmartFinder.
See pages 13 and 14 for more information.
1* LNT (Level North Technology) Module: This assembly has sensors which auto-
matically points the telescope North, and detects the level and tilt of the telescope
mation about Automatic
ing automatic alignment.
dur Alignment. The LNT bracket also contains a LNT Module which supplies the time and date to AutoStar. The time is set at the factory. See
MODULE PORT
below.
See page 17 f
or more inf
or
ATOMIC TIME UPDATE
1( ATOMIC TIME UPDATE MODULE Port: Attach Meade’s ATOMIC TIME UPDATE
-
our telescope’
Y
MODULE
tor scope to update the time module from the NIST atomic cloc Colorado.
optional accessor
ore it is shipped, b
y bef
y into this por
ut the
A
t.
TIME UPDATE MODULE
OMIC
T
s time is set at the f
ws y
allo
k in Fort Collins,
ac
our tele
-
2) Dust Cap: Unthread the dust cap counterclockwise from the front lens of the
telescope.
8
AUTOSTAR FEATURES
L
1
4
3
Want to learn more about
downloading the latest updates of AutoStar software from the Meade website? See
pages 28 and 42.
5
6
7
9
Fig. 4: The AutoStar Handbox.
K
8
J
1 LCD Display 2 ENTER Key 3 MODE K 4 GO TO Key 5 Arrow Keys 6 Number Keys 7 Scroll Keys 8 Speed/? Key
9 Coil Cord 10 RS232 Port 11 Light key 12 Utility Light
ey
Tour the Cosmos with Just the Push of a Button
Control of ETX Telescopes is through the operation of the standard-equipment #497 AutoStar. Nearly all functions of the telescope 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 30,000 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.
Download the latest satellite data, guided tours and software revisions directly from the Meade website ( A
utoStar enthusiasts. (Requires optional #505 AstroFinder™ Cable Connector
Kit. See OPTIONAL ACCESSORIES, page 42.)
Access a glossary of astronomical terms.
Calculate which eyepiece to use for optimum viewing of a celestial object.
A
utoStar pro has soft-touch k is bac lit displa user friendly.
vides control of virtually every telescope function. The AutoStar handbox
ys designed to ha
e
klit with red LEDs (Light Emitting Diodes) f
y, key arrangement and sequential menu structure make AutoStar extremely
www.meade.com) and share software with other
e a positiv
v
e feel.The LCD (Liquid Crystal Display)
or easy vie
wing in the dark. The back-
9
e Want to learn more
about using the GO TO function
Want to learn how to perform a
search
? See page 19.
spiral
? See page 19.
B 2-Line LCD Display: This screen displays AutoStar's menus and information
about the telescope
op line:
T
Bottom line: Displays other menus that may be chosen, menu options,
telescope status or information about a function that is being per­formed.
.
Lists the pr
imary menu.
c ENTER Key: Press to go to the next menu level or to choose an option in a menu.
The ENTER key is similar to the RETURN or ENTER key on a computer. See MOV-
ING THROUGH AUTOSTAR’S MENUS, page 21 and AUTOSTAR MENUS, page 22.
d MODE Key: Press to return to the previous menu or data level. The top menu level
is “Select Item." The MODE key is similar to the ESCAPE key on a computer.
Note: Pressing MODE repeatedly while in the “Select Item” level moves AutoStar to the topmost screen: “Select Item: Object.”
If MODE is pressed and held for two seconds or more, information about the telescope's status displa
eys (7,Fig. 2
k
• Right Ascension and Declination (astronomical) coordinates
• Altitude (v
• Local Time and Local Sidereal Time (LST)
• Timer and Alarm Status
• Date
• Site coordinates
• Battery status
• SmartFinder Finder Set menu (see below) Press MODE again to return to the previous menu.
Finder Set menu: Select the Finder Set menu to access options that will allow you to
intensity and blink rate of the SmartFinder red dot.
set the To set the blink rate of SmartFinder’s red dot (circled numbers refer to Fig. 4):
1. Press and hold MODE c for two seconds. R.A and Dec. coordinates display.
2. Keep pressing the Scroll Down key
3. Press ENTER b. “Finder Set: Intensity” displays.
4. Press the Scroll Down key
5. Press ENTER
display. “00.5” (one-half second) is the amount of time, in seconds, that the red dot will blink “on.”
6. Use the Number keys
example, you may wish to change the amount of time the red dot stays on to 10.2 seconds: Press “1,” press the Right Arrow key key
f, press “2.” An alternate method is to use the Scroll keys h to scroll
through the time values. Once the time value is entered, press ENTER b.
7. Press the Scroll Down key h. “Finder: Blink Off” displays. Press ENTER b.A
time value, “00.1” (one-tenth second), may display. For example, you may wish to change the amount of time the red dot stays off to 00.7 seconds: Press the Right Arrow key f twice (as the first two values are already zero), then press “7.” Or you may use the Scroll keys h to scroll through the time values.
8. The SmartFinder’s red dot will now blink on for 10.2 seconds and turn off for 0.7
seconds, and then repeat the cycle until you change the values again.Press and hold MODE
Similarly, you can set the Intensity value by scrolling through the intensity values with then Scroll keys h.The option lets you select a value of intensity for the red dot from 0 (Off) to 14 (Full Intensity).
) to displa
ertical) and Azimuth (horizontal) coordinates
b. A time value, in seconds, displays. For example, “00.5” may
c to exit this function.
ys. When the status displays, press one of the Scroll
y the following information:
h until “Finder Set: Set” displays.
h. “Finder: Blink On” displays.
g and the Arrow keys f to change the time value. For
f, press “0,” press the Right Arrow
e GO TO Key: After the telescope is aligned, press to slew (move) the telescope to
the coordinates of the currently 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. Also, press during the alignment or GO TO procedures to activate a "spiral search."
10
g Want to learn more
about changing slew speeds? See page 16.
Also, use the Arrow keys to scroll through numbers 0 through 9 and the alphabet. The Down Arrow key begins with the letter "A;" the Up Arrow key begins with digit "9."
Additionally, use the Arrow keys to to move the cursor across the display: Use the Right or Left Arrow key to move the cursor from one number to the next in the dis­play.
f Arrow Keys: The Arrow keys have several functions. Press an Arrow key to slew
the telescope in a specific direction (up, down, left and right), at any one of nine different speeds. See SLEW SPEEDS, page 16. Use the Arrow keys to move the telescope v horizontally counterclockwise, while the Right Arrow key rotates it clockwise.
ertically up and down. The Left Arrow key rotates the telescope
g Number Keys: Press to input digits 0 to 9. To change the speed at which the
telescope moves (known as the “slew” speed) press a NUMBER KEY from 1 through 9. 1 is the slowest speed and 9 is the fastest.
h Scroll Keys: Press to access options within a selected menu. The menu is
displayed on the first line of the screen. Options in the menu are displayed, one at a time, on the second line. Press the Scroll keys to move through the options. Press and hold a Scroll key to move quickly through the options.
The Scroll keys also control the speed of text scrolling on the AutoStar display. When text is scrolling, press and hold the Up Scroll key for a faster display speed and the Down Scroll key for a slower display speed.
i ? Key: Press to access the "Help" file. "Help" provides on-screen information on
how to accomplish whatever task is currently active. Press the ? key and then follow the prompts on the display to access details of
AutoStar functions in the Help feature. The Help system is essentially an on-screen instruction manual.
If you have a question about an AutoStar operation,
MENT, etc., press the ? key and follow the directions that scroll on the
second line. When satisfied with the Help provided, press MODE to return to the original screen and continue with the chosen procedure.
e.g., INITIALIZATION, ALIGN-
j RS232 Port: Plug in optional cable to download the latest satellite data and
software revisions directly from the Meade website ( also share software with other AutoStar enthusiasts or control your telescope remotely from your PC. (Requires optional #505 AstroFinder™ Software and Cable Connector Kit. See
OPTIONAL ACCESSORIES, page 42.)
www.meade.com).You can
1) Coil Cord Port/Coil Cord: Plug one end of the supplied AutoStar coil cord into
this port located at the bottom of the handbox and the other end into the HBX port of the Computer Control Panel.
1! Light/0 K
ey:
Press to tur
n on Utility light (
12,
Fig. 4
).
1@ Utility Light: Use this built-in red light to illuminate star charts and accessories
e's adaptation to darkness. Press "0" to turn the light on
y
without disturbing y
.
and off
our e
ETX TIPS
Star Charts
en with the AutoStar's large 30,000 object library, star charts and
Ev planispheres are still useful for a variety of reasons. In particular, they are a great aid in planning a night of celestial viewing.
A wide v net and on CD Roms. Meade offers AutoStar Suite software. Contact your Meade dealer or Meade's Customer Service depar
Astronomy and Sky and Telescope magazines print star charts each month for up-to-the-minute maps of the heavens.
ariety of star charts are available in books, in magazines, on the inter-
tment for more information.
and other star locator
11
Batter
ies
Cover
GETTING STARTED
Parts Listing
Getting the telescope ready for first observations requires only a few minutes. When first opening the pac
ETX Premier Telescope with fork mount system and SmartFinder
• #497 AutoStar handbox with coil cord.
• One or more eyepieces, packed in plastic storage containers.
• Hex-wrench, packed with the instruction manual. See page 44.
• #884 Deluxe Field Tripod; two attachment knobs; spreader tray with sepa­rate spring, washers (2) and tension knob; leg extension lock knobs.
king box, note carefully the following parts:
MAINTENANCE,
Fig. 5: Battery installation.
1
Fig. 6: Spread tripod legs.
2
Fig. 7: Slide spreader on rod.
3
Fig. 8: Tension knob assembly.
4
Fig. 9: Adjust tripod height.
2
How to Assemble Your Telescope and Tripod
Assembly of the ETX telescope requires eight AA-size (user-supplied) batteries.
1. Remove the ETX telescope from its packaging and place it on a sturdy surface. Place the ETX on its side and remove the battery compartment cover from the underside of the drive base. Insert eight (user-supplied) AA-size batteries into the battery compartment oriented as shown in the battery compartment. Replace the cover and return the telescope to an upright position.
Caution: Use care to install batteries as indicated by the diagrams in 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.
Note: AutoStar does not require batteries; the telescope’s batteries supply power to AutoStar.
2. Assemble the #884 Deluxe Field Tripod:
Step a: Spread the tripod (1, Fig. 6) legs apart to a fully open position. Step b: Slide the spreader tray (2, Fig. 7) onto the central threaded rod. Step c: Slide a washer, followed by the spring, another washer and the
tension knob (3, Fig. 8) onto the threaded rod.Tighten the tension knob
Step d: Adjust the height of the tripod by loosening the leg lock knobs (4, Fig. 9)
3. Mount your telescope in the altazimuth (alt/az) mode. If you wish to mount your
telescope in the equatorial mode, see
Step e: Loosen the latitude control latch (6, Fig. 10) and lift up the tilt-plate (5, Fig.
Step f: Line up the mounting hole (7, Fig. 11) on the base of the telescope
Step g: Unlock the latitude control latch (10, Fig. 13) and lower the tilt-plate until
to a firm feel.
and adjusting the height of the inner leg extensions.Then retighten the lock knobs.
EQUATORIAL ALIGNMENT, page 50.
Note: Throughout this manual, you will notice the term "Alt/Az," or more properly, up-and-do side-to-side hor
altazimuth.This term is frequently used to refer to altitude or the
tical mo
er
wn v
ontal movement of the telescope.
iz
) so that y
10
latitude control latch, so the assembly doesn't slip while you are attaching the telescope.
ed "High Latitude Leg" with the attachment knob
k
mar closest to the latitude control bar mounting hole with the attachment knob at the bottom of the tilt-plate. Thread both attachment knobs into the base of the telescope
eel only
m f
a fir
it is level (push the tilt-plate down until it stops; this is the level position). Lock the latitude control latch.
vement of the telescope).
ou can easily access the underside of the plate
.(
See Fig.
12.
)
Azim
Fig.
11
(
9,
ers to the
uth ref
(
Fig.
8,
Line up the other
.
)
. Relock the
11
)
Tighten to
.
that is
12
5
6
O
L
M
N
Fig. 10: Loosen control latch .
7
8
9
Fig. 11: High latitude leg mounting hole and corresponding attachment knob.
8
Fig. 12: Attach telescope to tripod.
J
Fig. 13: Level tilt-plate.
Fig. 15: Insert eyepiece.
4. Place the 26mm eyepiece (12, Fig. 15) into the eyepiece holder on the
telescope and tighten the attachment thumbscrew (
e sure that the flip-mirror control (
Mak in the above photo. See page 14, for more information. Remove the dust cover (
) from the end of the telescope tube.
Fig. 15
5. Make sure that the computer control panel power switch (A, Fig. 2) is in the OFF
position. Remove the AutoStar handbox and the coiled cord from the packing materials. Plug one end of the cord into the HBX port ( of the coiled cord into the coiled cord port at the bottom of AutoStar handbox, as shown above.
6. Tighten (to a "firm feel" only, do not overtighten) the vertical lock (Fig. 6) and the hor­Fig. 9)
izontal lock (
.
Fig. 16: Tighten vertical lock.
Fig. 15
14,
) is in the
Fig. 17: Tighten horizontal lock.
13, Fig.15) to a "firm feel" only.
“up” position, as shown
15,
C, Fig. 2)and the other end
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.”
or this e
(F ENTER. Press the Scroll Do
6. Press ENTER.
7.
k
ey 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” without blinking.
Use these men
8. the Blink Off 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.
xample, you may select or enter any value except “00.0.”) Press
“Finder: Blink Off” displays.
.
y
e
wn k
Use the Number keys to enter “00.0” or press the Scroll Down
means there is no “off” time, so the dot will remain on continuously,
ates. For example, If you select “00.1” in
us to set other b
link r
Fig.
14:
Handbo
HBX por
x
L
Aligning SmartFinder
In order for the SmartFinder to be useful, it must first be aligned with the main tele-
t.
scope, so that both the SmartFinder and the main telescope are pointing at precisely the same location. To align the SmartFinder:
y) land
a
oint the main telescope at some w
P
1. object, such as a telephone pole or sign. Center the object, as precisely as
ell-defined distant (perhaps a mile a
w
13
M
Fig. 18: Turn the top (13) or side (14) Smartfinder adjustment screws.
Fig. 19: Meade Super Plössl eyepieces.
N
Tip: If you plan on viewing using higher magnification eyepieces, first locate, center and focus the object using a low-power eyepiece (e.g., 26mm eyepiece). Then remove the low­power eyepiece and replace it with a higher­power eyepiece; the object should still be centered in the field of view. Objects are much easier to locate and center at lower powers; higher powers are employed simply by changing eyepieces.
Fig. 20a & 20b: Jupiter: Examples
ight amount of
of the r magnification and too much magnification.
le, in the SP 26mm eyepiece's field of view. Tighten the vertical and
possib horizontal locks (
6 and 9, Fig. 1) so that the tube cannot move and the object
remains centered.
2. While looking through the SmartFinder, turn the top or side alignment screws (13 and 14, Fig. 18), until the red dot of the SmartFinder points at precisely the same position as the view through the eyepiece of the main telescope.
The SmartFinder is now aligned to the main telescope. Unless the alignment screws are disturbed or the LNT Module is moved out of place, the SmartFinder should remain aligned indefinitely.
Choosing an Eyepiece
The magnification or power, at which a telescope is operating is determined by two factors: the focal length of the telescope and the focal length of the eyepiece.
Telescope Focal Length is the distance that light travels inside the telescope before reaching a focus. In the mirror-lens design of the ETX models, the focal length is compressed by the telescope’s secondary mirror, so that a long focal length is housed in the short ETX optical tube. For example, the ETX-90PE’s focal length is 1250mm or about 49”. This means that if the ETX–90PE were a classical refracting-type of telescope, the optical tube would be more than four feet long instead of the ETX–90PE's compact 11” tube length.
Eyepiece Focal Length is the distance light travels inside the eyepiece before reaching focus. Focal length is usually printed on the side of the eyepiece, for example, 26mm. Low-power eyepieces are typically available in 26mm, 32mm and 40mm sizes (see OPTIONAL ACCESSORIES, page 42). The low-power eyepiece provided with your ETX is designed to provide a wide, comfortable field of view with high image resolution.
Calculating Magnification: On a telescope, such as the ETX, different eyepiece focal lengths are used to achieve different magnifications, from low to high. A 26mm eye­piece yields 48X (“48-power”) on the ETX-90PE, 57X on the ETX-105PE and 73X on the ETX-125PE. A variety of powers may be obtained with the addition of optional eye­pieces as well as the #126 2X Barlow Lens which doubles the power of an eyepiece
OPTIONAL ACCESSORIES, page 42). To calculate magnification, divide the focal
(see length of the telescope’s optical tube by the focal length of the eyepiece. For example:
Telescope Focal Length divided by Eyepiece Focal Length = Power
1250mm divided by 26mm = 73X
With Bar
low: 73 x 2 = 146X
The eyepiece power or magnification is therefore 73X and 146X with the Barlow. Most observers should have 3 or 4 eyepieces plus the #126 2X Barlow to achieve the
full range of reasonable magnifications possible with ETX models.
ETX TIPS
Too Much Power?
Can you ever have too much power? If the type of power you’re referring to is eyepiece magnification, yes, you can! The most common mistake of the beginning obser which the telescope and atmospheric conditions cannot reasonably support. Keep in mind that a smaller, but bright and well-resolved image is far superior to one that is larger
e 300X should be emplo
v
abo 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
OPTIONAL A
er is to “overpower” a telescope by using high magnifications
v
20a and 20b). Powers
ut dim and poor
, b
CCESSORIES
ed (see Figs
ly resolv
yed only under the steadiest atmospheric
, page 42.
.
ETX telescopes. See
14
Note:
Viewing conditions vary widely from night-to-night and site-to-site. Turbulence in the air, even on an apparently clear night, can distort images. Low-power eyepieces, such as the 26mm supplied with your telescope, are better suited to resolving images in poor viewing conditions.
NEVER point the telescope directly at or
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.
Do not look through the telescope's eyepiece while it is rapidly moving. Children should always have adult supervision while obser
Impor
AutoStar requests the Country/State, City and Telescope Model information
time
Subsequently, AutoStar uses the location and model n chosen.
If you wish to change this
or
inf "Telescope Model" and "Site" options in the Setup menu. See pages 27 and 29 f information.
near the Sun at
ving.
tant Note
utoStar is activ
A
mation, use the
or more
:
only the first
umber you have
ated.
OBSERVING
Observing by Moving the Telescope Manually
If you wish to observe a distant land object, such as a mountain top or a bird, you can obser
ve by merely pointing the telescope and looking through the eyepiece.
1.
Loosen the telescope’s horizontal lock (
2. Move your telescope to observe distant street signs, mountains, trees and other struc­tures. Use the SmartFinder to help sight-in on an object.
3. Center the object with SmartFinder’s red dot and then in the telescope eyepiece. When the object is centered in your eyepiece, remember to re-tighten the horizontal and vertical locks.
4. Practice focusing objects using the focus knob (
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.
You can also observe stars and objects in the night sky using this method, but note that objects begin to slo of the Earth. As you become familiar with the AutoStar handbox operation, you can coun­teract the drift using the automatic tracking feature (see
TICALLY
MA
wly drift across the eyepiece field.This motion is caused by the rotation
, page 16) or b
y using AutoStar's GO TO capabilities (see
page 19).
Terrestrial Observing
ETX telescopes are excellent high-resolution terrestrial (land) telescopes. 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, like the 26mm, magnify these heat waves less than higher power eyepieces (such as a 9mm eyepiece). 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 Arrow Keys
You may observe land and astronomical objects using AutoStar's Arrow keys to move the telescope.
1. Tighten the horizontal (9, Fig. 1a) and vertical locks (6, Fig. 1b).
2. Make sure that AutoStar’s coiled cord is connected to the computer control panel’s HBX port (
3. Flip the Power Switch ( position. A copyright message lights on AutoStar’s LCD display, followed by a warning not to look at the Sun. done reading.
4. A “Getting Started” message displays. Press ENTER to skip this message.
5. AutoStar then displays: “Location Option: 1-Zipcode 2-City”. This option allows you to choose how you wish to enter the location of your observing site: you can enter your zip code or choose the site from a list of countr
Press the n digits of the zip code of your observing site and press ENTER.
Press the number key “2” if you wish to select your observing site from a list of coun­try, states and cities. First, use a Scroll key to cycle through the list of countries and states (listed alphabetically). Press ENTER when the correct location displays. Next, use a Scroll key to cycle through the list of cities (also listed alphabetically). Press ENTER when the closest city displays.
6. Finally “Telescope Models” displays. Using the SCROLL KEYS, cycle through the list of telescope models and press ENTER when y
7. The display now displays "Align: Automatic."
ou can no
Y Practice using the ARROW KEYS to center objects in the eyepiece.To change the speed at which the telescope moves (known as the “slew” speed), press a NUMBER KEY from 1 through 9.
C, Fig. 2).
A, Fig. 2) on the computer control panel to the ON
Press the A
See page 9 to 11 for more information about AutoStar’s keys.
umber key “1” if you wish to enter by zip code. Then enter the five
W KEYS
O
w use the
1 is the slo
ARR
west speed and 9 is the fastest.
9,
utoStar k
to slew (move) the telescope up, down, right or left.
) and v
Fig. 1a
8, Fig. 1b).
ertical lock (6,Fig. 1b
TO TRACK AN OBJECT AUTO-
GO
ey prompted by the message when you are
ies
, states and cities.
.
our model displa
ys
).
TO SATURN
,
15
Slew Speeds
AutoStar has nine slew speeds that move the optical tube at rates that are directly proportional to the sidereal rate and have been calculated to accomplish specific functions. Press the Number key to change the slew speed.
The nine available speeds are:
Number Key 1 = 1x = 1 x sidereal (0.25 arc-min/sec or 0.004°/sec) Number Key 2 = 2x = 2 x sidereal (0.5 arc-min/sec or 0.008°/sec) Number Key 3 = 8x = 8 x sidereal (2 arc-min/sec or 0.033°/sec) Number Key 4 = 16x = 16 x sidereal (4 arc-min/sec or 0.067°/sec) Number Key 5 = 64x = 64 x sidereal (16 arc-min/sec or 0.27°/sec) Number Key 6 = 128x = 30 arc-min/sec or 0.5°/sec Number Key 7 = 1.0° = 60 arc-min/sec or 1.0°/sec Number Key 8 = 1.5° = 90 arc-min/sec or 1.5°/sec Number Key 9 = Max = approx. 4.5°/sec
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 9mm eyepiece. Speeds 4, 5 or 6: Enable centering of an object in the field of a low-to-moderate power eyepiece, such as a 26mm.
Speeds 7 or 8: Best used f Speed 9: Moves the telescope quickly from one point in the sky to another.
or rough centering of an object in the SmartFinder.
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.The range of observable astronomical objects is limited only by the observer’s motivation.
Enter
Arrow keys
Help
Fig. 21: AutoStar keys.
Tip:
ultiple choices are
When m available within an
utoStar Men
A current option is usually displayed first and high-
y a r
lighted b
u option, the
ight pointing
Go To
Mode
Number keys
Scroll keys
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, making the overly bright surface appear flat and rather uninteresting. Try using a neutral density Moon filter when observing the Moon
OPTIONAL ACCESSORIES, page 42). Not only does it cut down the Moon's bright
(see glare, but it also enhances contrast, providing a more dramatic image.
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 (follows) the stars and other objects in the night sky. 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 centered in the telescope’s eyepiece.
To automatically track objects, you need to learn how the AutoStar keypad operates in order to move through its menus. You'll also need to initialize and align your telescope.
Moving Through AutoStar’s Menus
The AutoStar database is organized in levels for quick and easy navigation.
• Press ENTER to go deeper into AutoStar's menu levels. e back toward the top menu level.
Press MODE to mo
• Press the Scroll keys to move up and down through the options
available for each level. Press the Arro
are also used to move the telescope.
v
ys to enter characters and digits. The Arrow keys
e
w k
16
Definition: Initialization
procedure that makes sure that AutoStar operates correctly. When you first use AutoStar, it doesn't yet know where the observation location site is. AutoStar also needs to know the time and date, which is set at the factory and may also be reset using Meade’s optional Atomic Clock Update Module accessory.
AutoStar uses this information (along with detecting tilt, level and North) to precisely calculate the location of celestial objects (such as stars and planets) and to move your telescope correctly for various operations.
Note:
Throughout this manual, you will notice the term "alt/az." Alt/az is frequently used to refer to altitude (vertical) and azimuth (horizontal). Alt/az is just one of many methods used by amateur astronomers to help locate stars in the night sky.
Another method of alignment is called “Equatorial ” (also known as “Polar”).To learn more about equator see page 50.
22:
Fig.
Fig. 23: The horizontal
lock.
The v
is a
ial alignment,
k.
tical loc
er
Initializing AutoStar for the First Time
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).
AutoStar will ask you to choose your observing location and your telescope’s model number from the list it displays.You will be prompted to enter this information
st time you use AutoStar.
fir
ou wish to change your location information (or if
If y
only the
AutoStar does not ask you for this information information the first time that you use it), go to the Site option of the Setup Menu to select your location. See pages 27 and
or more information.
29 f
1. Tighten the vertical and horizontal locks ( Make sure that AutoStar is connected to the HBX port (
2.
6, Fig. 1b and 9, Fig. 1a) if necessary.
Fig. 2
C,
) of the
telescope’s computer control panel.
3. Flip the telescope power switch (
A, Fig. 2) to the ON position.
The AutoStar screen displays a copyright message, followed by a short beep. Then AutoStar takes a few moments to start up the system.
4. 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. The Getting Started menu displays a scrolling message. Press ENTER (
) to bypass the Help tutorial and continue with initialization.
4
2, Fig.
6. AutoStar then displays: “Location Option: 1-Zipcode 2-City”. This option allows you to choose how you wish to enter the location of your observing site: you can enter your zip code or choose the site from a list of countries, states and cities.
Press the number key “1” if you wish to enter by zip code. Then enter the five digits of the zip code of your observing site and press ENTER.
Press the number key “2” if you wish to select your observing site from a list of country, states and cities. First, use a Scroll key to cycle through the list of coun­tries and states (listed alphabetically). Press ENTER when the correct location displays.Next, use a Scroll key to cycle through the list of cities (also listed alpha­betically). Press ENTER when the closest city displays.
7. 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.
8. System initialization is complete and the screen reads "Align: Automatic."
Automatic Alignment
ou. AutoStar is
After initializing, A in the alt/az mode (
utoStar will automatically align y
see the mar
gin Note to the left
our telescope f
y def
) b power it on, so you do not need to select this mode.If you wish to align your telescope in the equatorial (polar) mode, see
ing automatic alignment, y
Dur
EQUATORIAL ALIGNMENT, page 50.
ou will be ask
ed to set the telescope in the home position. Then AutoStar will automatically detect the level position and the tilt of your telescope, and also detects North (note that the telescope may after it does so).
After finding North, AutoStar picks two stars from its database. AutoStar moves the telescope to the first alignment star and the user is asked to center the star in the
The process is then repeated with a second star to complete the alignment.
.
epiece
y
e
ollowing explains in detail how to perform the alt/az automatic alignment procedure.
The f
w to perf
Ho
orm the A
utomatic Alignment pr
ocedure
1. Set Home Position: AutoStar then prompts you to set the telescope in the Alt/Az
Alignment home position. To set your telescope in the Alt/Az home position when using the A
utomatic Alignment men
u:
If necessary, tighten the telescope’s vertical lock ( Unlock the horizontal lock (9,Fig. 1a
). This will allo
telescope tube and fork arm assembly.
or y
ault the first time y
not be pointing North
6, Fig. 1b).
w you to rotate the
ou
17
Fig. 24 [top view]: Rotate the telescope tube counterclock­wise until it stops.
Important Note: The home position for Automatic Alignment
different
position used with One Star and Two Star Alt/az alignments. See page 36 for setting the Home Position during One Star and Two Star Altaz
than the home
is
Grasp the telescope by a fork arm and rotate the telescope
• counterclockwise until it stops (
Re-lock the horizontal (
Level, Tilt and Find North:Next your telescope begins to move. AutoStar
2.
9, Fig. 1a) and vertical locks (6, Fig. 1b).
Fig. 24).
moves your telescope so that it can calculate the level position and tilt of your tel-
, and also calculate the location of True North.While it is performing these
escope functions, the following messages will appear on AutoStar’s display: “Calc Level,” “Calc North” and “Calc Tilt.”
Note: During this step in the procedure, the telescope may not become level or actually point to North. AutoStar is merely moving the telescope about so that it can calculate these positions
.
3 . Star Alignment: Next, AutoStar continues to move the telescope (you don’t need
to press any buttons) in order to choose two stars for alignment. AutoStar will display a name of a star and the word “Slewing” as it moves to the first star. It will then prompt you to center the star.
However, when the telescope slews to the first star, it may not appear in the field of view in the eyepiece. Use the SmartFinder (
2, Fig. 1a) to locate the star. The
alignment star will be easy to recognize—it will be the brightest star in the area of the sky where the telescope is pointing. Look through the SmartFinder and use the Arrow keys to move the telescope until the star is visible. Then look through the eyepiece and center the star using the Arrow keys. Press ENTER. Repeat the 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.
Alignment Star
Fig. 25: During alignment, the alignment star is always the brightest star in the area of the sky at which the telescope is pointing.
Important Note:
While performing the automatic tracking procedure Arrow keys to move the telescope. Once the telescope has been aligned, do not loosen the telescope’s vertical or horizontal locks (
Fig.
the base manually or alignment will be lost.
, only use the
1a and 1b
6 and 9,
) or mo
ve
NOTE: 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.
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 feature automatically keeps the star centered in your telescope's eyepiece. Make sure you have initialized and aligned your telescope before you try out this feature (see page 17).
1. Once your telescope has been aligned, “Align Successful” and then “Select Item: Object” display. Push the Scroll Up key once and “Select Item: Setup” displays
2. Press ENTER. “Setup: Align” displays.
3. Press the Scroll Down key repeatedly until "Setup: Targets" displays. Press ENTER.
"Targets: Terrestrial" displays. Press one of the Scroll keys once. "Targets:
4.
.
Astronomical" no
w displa
ys
ETX TIPS
Which One’s the Alignment Star?
If you’re not familiar with objects in the night sky, how can you be sure if the star
our eyepiece is really the alignment star?
in y
The rule of thumb is that an alignment star is usually the brightest star in that area of the sky. If you perform a GO TO to an alignment star and you're not sure if you have located the alignment star or it isn't in the eyepiece, look through your smartfinder. When you view an alignment star in the SmartFinder, it stands out dramatically from the rest of the stars in that portion of the sky.The SmartFinder will help y sle center the alignment star in the SmartFinder. If your SmartFinder has been aligned with the telescope, the alignment star should now be in the eyepiece. Set the sle
SPIRAL SEARCH tip, page 19.
ou locate a star more quic
w speed to 6 (press Number k
w speed to 4 or less and center the star in the e
kly than the e
y 6) or higher and use the Arro
e
yepiece. Using AutoStar, set the
ys to
e
w k
epiece. Also see the
y
18
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