NexStar 80SLT
Item #22086
Quick Set-up Guide
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Your NexStar 80SLT includes: optical tube;
fork arm; pre-assembled tripod;
computerized hand control; hand control
holder; star diagonal; two eyepieces;
finderscope; accessory tray; documentation
including an owner’s manual, The Sky® CD
and NSOL Telescope Control Software.
Assemble tripod by spreading the legs
out until the center leg brace is fully
extended.
Extend tripod legs 6 to 8 inches by
loosening the tripod leg locking knob
and pulling the leg to desired length and
re-tightening knob.
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All three legs should be the same length to
provide a level platform for the telescope. A
bubble level is included (inset) to assist in leveling. tray to the post on the brace.
Place accessory tray on top of center leg
brace by lining up the grooves on the
Once grooves are aligned, turn accessory
tray until it snaps into the clips on each
leg brace.
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Coupling screw
Thread the coupling screw into
the hole at the bottom of the fork arm
base. Tighten screw to secure the
fork arm.
Slide the optical tube dovetail into the fork
arm as shown above.
Hold the telescope fork arm and place
the bottom of the base inside the tripod
mounting platform as shown.
Hand Control Guide
Before you can begin using your NexStar 80SLT, you must setup your computerized hand control and go through
the SkyAlign alignment procedure. In order for the NexStar to accurately point to the objects in the sky, it must first
be aligned with known positions (stars) in the sky. With this information, the telescope can create a model of the
sky, which it uses to locate any object in its database
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Turn power switch (located on the side of
the fork arm) to“on”position. The light will
come on and the hand control will
display “NexStar SLT”.
You will notice that there are directional
arrows in the center of the hand control.
These only move the telescope. They
cannot be used to scroll through
menu features.
Now you will need to align the finderscope.
Turn on the red LED light by turning the
knob shown above. When used for the first
time, remove the clear plastic disk that is
located between the battery clip and the
battery. See inset.
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Use the hand control direction arrow
buttons to point telescope at a distant
land object, like a telephone pole or at
night you can use the moon. Center and
focus the object in the 25mm eyepiece
of the telescope.
In order to accurately center an object
in the eyepiece it may be necessary to
change the slew speed of the motors.
To change the slew speed, press the
RATE button then select a number from
1 (slowest) to 9 (fastest).
With the object centered in the eyepiece,
use the azimuth (right/left) and altitude
(up/down) adjustment knobs on the
finderscope to place the red alignment
dot directly over the centered object.
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Use the UP and DOWN scroll buttons
(located on #6 and #9) to select
“SkyAlign” then press ENTER. Now you
will need to enter your site/time
information.
Once you have aligned your finderscope, When the display reads NexStar SLT,
make sure to turn off the LED light to
conserve the battery. Now you are ready
to align the telescope. This will have to
be done at night.
press ENTER to begin the alignment
procedure.
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The hand control will display the last
entered time and site information. Since
this is your first time using the NexStar,
press UNDO to enter your site and time
information.
Press ENTER to select City Database. Use
the Up and Down scroll buttons (located
on #6 and #9) and choose the closest city continue. Press UNDO to backspace.
to your present location. Press ENTER
Using the numeric key pad enter your
time information. Press ENTER to
after selecting the country, state and city.
Hand Control Guide [cont]
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Use the directional arrow keys on the hand
control to slew (move) the telescope
towards any bright celestial object in the
sky. Center the object in the finderscope
and press ENTER.
Now, using the Up and Down scroll
buttons (located on #6 and #9), verify the date. Press ENTER to continue. Press
time zone you are in and press ENTER.
Using the numeric key pad enter the
UNDO to backspace.
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If the finderscope has been properly
aligned, the alignment star should now
be visible in the field of view of the
eyepiece.
For the second alignment object, choose
a bright star or planet as far from the first
alignment object as possible. Once again
use the directional arrow buttons to
center the object in the finderscope and
press ENTER. Once object is centered in
the eyepiece, press ALIGN.
The hand control will prompt you to
center the bright alignment star in the
center of the eyepiece. Once centered,
press ALIGN. This will accept the star as
your first alignment position.
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INFO
TOUR
Now that your telescope is properly
aligned, you are ready to find your first
object. Press the TOUR button on the
hand control. The hand control will
display a list of objects that are visible for object.
the date and location entered.
Press INFO to read information about the
object displayed. Press the DOWN scroll
key to display the next object. Press
ENTER to slew (move) to the displayed
Repeat the process for the third
alignment star. When the telescope has
been aligned to the final star, the display
will read “Match Confirmed”. Press UNDO
to display the names of the three bright
objects you aligned to, or press ENTER to
accept these three objects for alignment.
For general usage information, please consult your user’s manual.
If you have questions or problems with set-up, please contact
Celestron Technical Support: 310.803.5955
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