Celestron CGEM II EQ MOUNT CGEM II EQ Mount Manual

Celestron CGEM II EQ MOUNT Manual

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  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 1
    INSTRUCTION MANUAL For Models: 91523 12010 12011 12012 12017 12018 12019
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  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 3
    TABLE OF CONTENTS Introduction 5 CGEM II Mount 6 Assembly 7 Computerized Hand Control 12 Object Catalog 16 Slewing to an Object 16 CGEM II Main Menu Tree 23 Polar Aligning the Mount 25 Appendix A - CGEM II Mount Technical Specifications 29
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  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 5
    on your purchase of the Celestron CGEM II telescope mount. The CGEM II German equatorial mount has been designed with the highest should keep this manual handy until you have fully mastered your telescope's operation. The hand control has built-in instructions to guide you through all the
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 6
    CGEM II Mount (Shown with 11" Edge Optical Tube Assembly) 1 A B 2 C 5 D E 3 6 4 7 8 9 1 Optical Tube 2 CGEM II Equatorial Mount 3 Counterweight Bar 4 Counterweight 5 Control Panel 6 Latitude Adjustment Scale 7 Hand Control 8 Tripod Center Leg Brace/Accessory Tray 9 Tripod CONTROL PANEL
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 7
    Assembly This section covers the assembly instructions for your Celestron CGEM II mount. Your mount should come with all of the following: • Equatorial head • Tripod • Accessory tray • Counterweight bar with locking nut • Azimuth adjustment screws (x2) • Hand control • Hand control holder (2 pieces
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    position with one wrench while using another wrench to tighten the locking nut against the tripod head. 5. M ount the equatorial head as described above. Attaching the Accessory Tray The CGEM II mount comes with an accessory tray that has holes specially designed for 1.25" and 2" eyepieces. The
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 9
    Hand Control Holder The CGEM II telescope models come with a hand control holder that attaches to a tripod leg. The hand Mount The telescope attaches to the mount via a dovetail slide bar which is mounted along the bottom of the telescope tube. The CGEM II equatorial head has a special mounting
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    is described later in this manual in the section on "Polar Alignment." Tip: W  hile the above instructions describe a perfect balance arrangement, latitude adjustment on the CGEM II mount has a range from approximately 15° to 70°. Balancing the Mount in DEC Although the mount does not track in
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    ascension and declination, as described earlier in this manual. Powering the Telescope The CGEM II mount can be powered by the supplied car battery adapter or or the optional AC to DC adapters supplied by Celestron. Use only adapters supplied by Celestron. Using any other adapter may damage the
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 12
    Computerized Hand Control The CGEM II uses the NexStar+ hand control that is designed to give you instant access to all the functions your mount has to offer. With automatic slewing to over 40,000 objects and common sense menu descriptions, even a beginner can master its variety of features in
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 13
    2. A lign: Instructs the hand control to begin the process of aligning your telescope. 3. Direction Keys: Allows complete control of the CGEM II mount in any direction. Use the direction keys to center objects in the eyepiece or manually slew telescope. 4. C atalog Keys: The CGEM II has a key on
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    the finderscope. When centered in the finder, press ENTER. The display will then instruct you to center the star in the field of view of the eyepiece. When stars. This is essential for an accurate calibration of the mount. Finally, you can choose to continue to add additional calibration stars or Press
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    ensure the best possible full-sky pointing accuracy, your computerized mount automatically filters and chooses its initial alignment stars so control, do the following: 1. P ress the BACK button until the display reads "CGEM II Ready" 2. P ress the MENU button and use the Up and Down keys to
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 16
    and have manually moved the mount, it may be necessary to re-align the mount for improved the object or hold the OPTION button (the Celestron logo) and press OBJECT INFO to see information an observer in the eye. Sky Tour Button The CGEM II mount includes a tour feature which allows you to choose
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 17
    high speed slew rate to precise guiding rate or anywhere in between. troubleshooting tips. For your convenience, it currently functions as a shortcut to the Messier Catalog. Menu Button The CGEM II mount mount being used to support the telescope. The telescope has three different tracking modes: • EQ
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    time by holding down the Option button (the Celestron logo) for 10 seconds while powering up the pressed (especially when changing directions). The CGEM II anti-backlash feature allows the user to is on. This can create confusion especially when guiding on a star during an astroimaging session.
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    objects that are as far as 10° beyond your Meridian. • Favor West - If the target object is accessible from both sides of the mount, selecting "Favor West" instructs the mount to point to the object as if it were on the west side of the meridian. The optical tube will then be positioned
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    , the mount has built-in calibration routines allowing it to compensate for mechanical variation inherent in every German equatorial mount. Each the R.A. slew limit set in the hand control. If this proves to be a problem, the direction that the telescope takes to center an object can be changed. To
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    star by asking you to center the star in the eyepiece and pressing the Align button. Once synced on the star, you are free to manually move the mount in both axes in order to rebalance. When you are ready to slew the telescope to your next object, just remember to
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    . Note: Some of the databases contain thousands of objects and can therefore take several minutes to return the closest objects. Precise GoTo The mount has a Precise Goto function that can assist in finding extremely faint objects and centering objects closer to the center of the field of view
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 23
    CGEM II Main Menu Tree Menu Tracking View Time-Site Hand Control Scope Setup Utilities User Objects Get RA-Dec GoTo RA Dec Identify Precise Goto Mode EQ North EQ South Off Rate Sidereal Solar Lunar Saved Site Light Control Keypad Level Display Level Scrolling Menu Toggle Bold Font
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 24
    CGEM II Main Menu Tree Scope Setup Setup Time-Site Anti-Backlash Filter Limits Direction Button GoTo Approach Autoguide Rates OTA Orientation Meridian Mount Settings RA Limits Custom Rate 9 Custom Site City Database RA Positive RA Negative Dec Positive Dec Negative RA Button Dec Button RA
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 25
    The CGEM II mount can tripod. There is a bubble level built into the mount for this purpose. 3. Adjust the mount in altitude until the latitude indicator points to your latitude. Moving the mount affects the angle the polar axis is pointing. For specific information on adjusting the equatorial mount
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    if using the optional polar axis finderscope). You should be able to see the sky from the hole under the polar axis cover. 5. Adjust the mount in altitude and/or azimuth until Polaris is visible through the polar axis hole. Center Polaris as accurately as possible. Like the Display Align method
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    information on polar aligning, see the Polar Alignment section earlier in the manual. 2. R emove all visual accessories. 3. T hread the Radial Guider CGEM II mount needs to know the current position of its worm gear, so it has a reference when playing back the recorded error. Next, you must guide
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    telescope is turned off. To give yourself more time to prepare for guiding, it may be necessary to restart PEC recording after the worm gear has P oint the telescope at the object you want to image and center the guide star on the illuminated cross hairs. You are ready to play back the
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 29
    Appendix A - CGEM II Mount Technical Specifications Mount Type Tripod Dovetail Mount Payload Capacity Latitude Range Power Requirements Ports Motor Drive Slew Speeds Tracking Rates Tracking Modes Alignment Procedures Computerized Hand Control Database Mount Weight Tripod Weight Weight of
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 30
    Celestron together with proof-of-purchase satisfactory to Celestron. If warranty problems arise, or if you need assistance in using your telescope mount contact: Celestron Customer Service installed and used in accordance with the instructions, may cause harmful interference to radio communications
  • Celestron CGEM II EQ MOUNT | CGEM II EQ Mount Manual - Page 31
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INSTRUCTION MANUAL
For Models:
91523
12010
12011
12012
12017
12018
12019