Celestron skyexpedition 60, Инструкция по эксплуатации, Страница: 5 / 26

Leveling the telescope
Now that the base is attached to the tripod, it is a good idea to use the
included bubble level to more accurately level the telescope.
1. Place the bubble level on the top of the motorized base.
2. Adjust the tripod legs until the bubble level shows the base to be level.
attaching the telescope to the Base
Your telescope optical tube has a built on dovetail mounting bar used to
attach the tube to the base. To attach the telescope tube:
1. Loosen the altitude clutch knob a quarter turn and rotate the tube
clamp so that the mounting bolt is positioned on the top of the base.
Retighten the altitude knob by hand, but do not over tighten.
2. Loosen the tube clamp mounting bolt.
3. Slide the telescope tube’s dovetail mounting bar into the tube clamp.
Make sure that the fi nderscope is pointing up when the tube is attached
to the base.
4. Tighten the mounting bolt by hand to secure the tube to the base.
Your telescope is fully assembled and is ready to attach the accessories.
the Star diagonal
The star diagonal diverts the light at a right angle from the light path of
the telescope. For astronomical observing, this allows you to observe
in positions that are more comfortable than if you were to look straight
through. To attach the star diagonal:
1. Turn the thumbscrew on the eyepiece adapter at the end of the
focuser barrel until it no longer extends into (i.e., obstructs) the inner
diameter of the focus barrel. Remove the protective dust cap from the
focuser barrel.
2. Slide the chrome portion of the star diagonal into the focuser barrel.
3. Tighten the thumbscrew on the focuser barrel to hold the star diagonal
in place.
If you wish to change the orientation of the star diagonal, loosen the
thumbscrew on the eyepiece adapter until the star diagonal rotates freely.
Rotate the diagonal to the desired position and tighten the thumbscrew.
the Eyepiece
The eyepiece is the optical element that magnifi es the image focused by the
telescope. The eyepiece fi ts directly into the star diagonal. To install
the eyepiece:
1. Loosen the thumbscrew on the star diagonal so it does not obstruct
the inner diameter of the eyepiece end of the diagonal. Remove the
protective dust cap from the star diagonal’s barrel.
2. Slide the chrome portion of the low power 25 mm eyepiece into the
star diagonal.
3. Tighten the thumbscrew to hold the eyepiece in place.
To remove the eyepiece, loosen the thumbscrew on the eyepiece barrel and
slide the eyepiece out.
Eyepieces are commonly referred to by focal length and barrel diameter.
The focal length of each eyepiece is printed on the eyepiece barrel. The
longer the focal length (i.e., the larger the number) the lower the eyepiece
power or magnifi cation; and the shorter the focal length (i.e., the smaller
the number) the higher the magnifi cation. Generally, you will use low-to-
moderate power when viewing. For more information on how to determine
power, see the section on “Calculating Magnifi cation” found on the
Celestron website at
www.celestron.com/downloads .
Barrel diameter is the diameter of the barrel that slides into the star
diagonal or focuser. The SkyExpedition uses eyepieces with a standard
1-1/4” barrel diameter.
Focusing
To focus your telescope, simply turn either of the focus knobs at the eyepiece
end of the optical tube. Turn the focus knob until the image is sharp. Once
sharp, turn the knob towards you to focus on an object that is closer than the
one you are currently observing. Turn the knob away from you to focus on a
more distant object than the one you are currently observing.
the StarPointer Finderscope
The StarPointer is the quickest and easiest way to point your telescope
exactly at a desired object in the sky. It’s like having a laser pointer
that you can shine directly onto the night sky. The StarPointer is a zero
magnifi cation pointing tool that uses a coated glass window to superimpose
the image of a small red dot onto the night sky. While keeping both eyes
open when looking through the StarPointer, simply move your telescope
until the red dot, seen through the StarPointer, merges with the object as
seen with your unaided eye. The red dot is produced by a light-emitting
diode (LED); it is not a laser beam and will not damage the glass window
or your eye. The StarPointer is powered by a long life 3-volt lithium battery
(#CR1620). Like all fi nderscopes, the StarPointer must be properly aligned
with the main telescope before it can be used. The alignment procedure is
best done at night since the LED dot will be diffi cult to see during the day.
Install the Battery
1. Unscrew the battery cover on the StarPointer fi nderscope.
2. Insert battery with “ + ” side facing out.
3. Replace battery cover.
FIgure 2-5
leveling the Base
Place Bubble
Level Here
FIgure 2-6
Mounting Bolt
Dovetail
Bar
Altitude Clutch
Knob
FIgure 2-7
accessorIes
Focuser Barrel
Eyepiece
Star Diagonal
4