Celestron 22453 User manual

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Unpack your telescope and verify that all parts
are present. Your StarSense Explorer LT includes:
a telescope tube with altitude slow motion rod
attached, a lens cap, an accessory bag, a tripod
with alt-azimuth yoke mount and center leg brace
attached, two tube mounting screws, a StarSense
smartphone dock, two eyepieces, a 2x Barlow
lens, an eyepiece accessory tray, a StarPointer
finderscope and StarSense Explorer app code card.
To set up the tripod, spread the legs outward until
they are fully extended and push down the center
leg brace.
ITEM #22453
Extend the center portion of each of the three tripod
legs down about 6 to 12 inches. Use the tightening
screw on each leg to secure the extended leg in
place.
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127AZ
Quick Setup Guide
Check to ensure that all three legs are the same
height once extended to provide a level platform for
the telescope.
Place the eyepiece accessory tray on top of the
tripod’s center leg brace. Thread the tray into the
threaded hole in the center of the leg brace until it
is fully seated.
NOTE: If necessary, rotate the accessory tray
counterclockwise until the accessory holes
are not covered by the leg brace arms as
shown here.
Loosen the knob on the altitude rod guide on the
side of the yoke mount so the hole is unobstructed. Slide the altitude rod into the rod guide on the
mount and lower the altitude hubs on the telescope
tube into the cradles on the top of each yoke arm.
Tighten the altitude rod guide screw to hold the
telescope in place.
Insert the two tube mounting screws through the
yoke mount and into the hubs on the telescope tube
to secure it in place.
To install the finderscope, remove the two silver
nuts from the threaded posts on the top of the tube,
near the focuser.
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Place the two holes in the base of the finderscope
over the threaded posts so the finderscope base
sits flush on the telescope tube. Make sure that the
round window on the finderscope is pointed away
from the focuser.
Thread the two nuts back onto the threaded posts. There is a small clear plastic tab inserted between the
battery and the contact. This was included to prevent
the battery from discharging during shipment. Pull
this out to allow your battery to work.
To use the Barlow lens, remove your eyepiece
from the telescope focuser, insert the Barlow lens
into the focuser and insert your eyepiece into the
Barlow lens. This will double the magnification of
whatever eyepiece you use it with.
Loosen the setscrews on the telescope focuser and
remove the dust cap.
To install the eyepiece, loosen the setscrews on the
focuser. Insert the silver barrel on the bottom of the
eyepiece into the focuser and secure by tightening
the setscrews. Always start using your low-power
eyepiece (25 mm) to help you find the target you
wish to view. You can always change to your high-
power eyepiece (10 mm) later.
To install the StarSense smartphone dock, loosen
the two setscrews on the dock mount on the top
of the telescope tube and slide the dovetail on the
bottom of the dock into the mount. Secure in place
by tightening both screws.
Remove the lens cap from the front of the telescope.
To observe, look through the eyepiece as shown
above. Focus the image by turning the knobs below
the focuser.
Downloading and
Activating the App
Before you take your telescope outside, download
the StarSense Explorer app to your mobile device.
Search for “Celestron StarSense Explorer” in the
Apple App Store or Google Play. The app is large,
so we recommend downloading it while connected
to Wi-Fi.
Download the app from the
before your first observing session
.
or
When prompted, enter the unique unlock code below to
enable telescope control on your device.
Once you have downloaded the app, locate the
orange postcard in your telescope box. Launch the
app. When prompted, enter the activation code on
the postcard to activate the app. Your code will
unlock up to 5 devices.
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To move the mount left and right, loosen the azimuth
tension knob located on the yoke mount between
two of the tripod legs.
Fine adjustment in the up-and-down direction can be
done using the altitude slow motion rod. Keep the
rod guide knob locked and rotate the black handle
on the slow motion rod. This allows you to move the
telescope in small increments to help center objects
or follow celestial objects in the night sky.
Hold the tripod leg with one hand and grab the
telescope tube focuser and move it left or right
as desired. The amount of tension you feel when
moving the telescope can be adjusted by tightening
or loosening the knob to a level that is comfortable
for you.
The altitude slow motion rod has a limited range of
motion of about 15 degrees. If you run into the end of
travel and the knob will no longer turn, you can reset
it by loosening the rod guide knob and turning the
slow motion rod handle the opposite direction until
you are in the middle of its travel, then retighten the
rod guide knob.
To move the telescope up and down, hold the
focuser of the telescope in one hand and loosen the
knob on the slow motion rod guide. The telescope
can now be moved up or down as desired. When
you are close to your target, tighten the knob to
secure the telescope in place.
Moving the
Telescope
CENTER THE TARGET IN THE EYEPIECE
Look through the telescope using your lower
powered eyepiece. Move the telescope until the
object you chose lies in the center of the view. If the
image is blurry, gently turn the focus knobs on either
side of the telescope until it comes into sharp focus.
NOTE: The image in your telescope may appear
inverted. This is perfectly normal in an
astronomical telescope.
Aligning the
Finderscope
The finder is one of the most important parts of your
telescope. It helps you locate objects and center
them in the eyepiece. The first time you assemble
your telescope, you need to align the finder to the
telescope’s main optics. It’s best to do this during
the day*.
*SOLAR WARNING! Never attempt to
view the Sun through any telescope without
a proper solar filter!
25 mm eyepiece
Focus Knobs
CHOOSE A TARGET
Take the telescope outside during the day and find
an easily recognizable object, such as a streetlight,
car license plate or sign. The object should be as
far away as possible, but at least a quarter mile
away.
ADJUST THE FINDERSCOPE
Without moving the telescope, use the two
adjustment knobs to move the finder around until
the red dot appears over the same object you are
observing in the telescope’s 25 mm eyepiece.
YOUR FINDERSCOPE IS NOW ALIGNED!
It should not require realignment unless it is bumped
or dropped.
LOOK THROUGH FINDERSCOPE
Once the object is centered in your 25 mm eyepiece,
look through the finderscope and locate the red dot.
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Attaching the
Smartphone
Your First
Night Out
Congratulations! Your telescope is now set up
and you are ready to explore the cosmos. Take the
telescope outside, insert your 25 mm eyepiece,
remove the lens cap, insert your smartphone into the
holder, and launch the StarSense Explorer app. The
tutorial in the app will walk you through the steps on
finding your first astronomical target.
Remove the large cap covering the mirror on the front
of the StarSense dock.
Pull open the spring-loaded slider on the top of the
phone dock and set the phone into the holder so
it is flush with the bottom lip of the phone holder.
Slowly release the slider to secure the phone in
place.
For more information on this product, please visit the respective product page
on celestron.com
SOLAR WARNING:
Never attempt to view the sun through any telescope without a proper solar filter.
Need assistance?
Contact Celestron Technical Support celestron.com/pages/technical-support
08-19
www.celestron.com/pages/warranty
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