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This section covers the assembly instructions for your Celestron Advanced Series Telescope (AST). Your
AST telescope should be set up indoor the first time so that it is easy to identify the various parts and
familiarize yourself with the correct assembly procedure before attempting it outdoor.
#11071 / 11072 #11025 / 11026 #11045 / 11046
C5-S C8-S
C9.25-S
Diamete
r
127mm (5") Schmidt-Cassegrain 203mm (8") Schmidt-Cassegrain 235mm (9.25") Schmidt-Cassegrain
Focal Length
1250mm F/10 2032mm F/10 2350mm F/10
Eyepiece
25mm - 1.25" (50x) 25mm - 1.25" (81x) 25mm - 1.25" (94x)
Finderscope
6x30 6x30 6x30
Diagonal
90° - 1.25" 90° - 1.25" 90° - 1.25"
Mount
CG-5 Equatorial CG-5 Equatorial CG-5 Equatorial
Tripod
2" Stainless Steel 2" Stainless Steel 2" Stainless Steel
Software
The Sky L1 The Sky L1 The Sky L1
Counterweights
1-11lb 1-11lb
2-11lb
The Celestron Advanced Series telescopes are shipped in two boxes (three boxes for GT models). In
separate boxes are the following:
• Optical Tube Assembly and Standard Accessories
• Equatorial Mount, Tripod, Hand Control, Counterweight(s) and Counterweight Bar (equatorial
mount with motors comes in separate box for GT models)
Remove all the pieces from their respective boxes and place on a flat, clear work area. A large floor space
is ideal. When setting up your Celestron telescope you must start with the tripod and work up from there.
These instructions are laid out in the order each task must be performed.
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The CG-5 tripod comes with an all metal center leg brace / accessory tray to give rock solid support to the
mount.
The tripod comes fully assembled with a metal plate, called the tripod head, that holds the legs together at
the top. In addition, there is a central rod that extends down from the tripod head that attaches the
equatorial mount to the tripod. To set up the tripod:
1. Stand the tripod upright and pull the tripod legs apart until each leg is fully extended. The tripod will now
stand by itself. Once the tripod is set up, you can adjust the height at which it stands.
2. Loosen the lever on the leg clamp so that the tripod leg can be adjusted.
3. Slide the center portion of the tripod leg away from the tripod head until it is at the desired height.
4. Tighten the levers on each leg clamp to hold the legs in place.