Celestron CGEM Computerized Telescope Mount Review

The CGEM mount has a fresh, attractive, bold appearance and is capable of carrying Celestron’s higher-end SCT optical tubes (up to 11″) securely and vibration free, which is ideal for both imaging and visual observing. Capable of holding over 40 lbs. of payload and slewing at 5 degrees per second, you will be able to instantly point to any of the celestial objects in the database.


The CGEM was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provides a clean look and an easy and trouble free set up. The CGEM series has a new innovative Polar alignment procedure called All-Star (patent pending).


All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM, sure to please astroimagers, is the Permanent Periodic Error Correction which will allow users to train out the worm gears periodic errors, while the mount retains the PEC recordings.


For objects near the Meridian, the CGEM will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM mount has a robust database with over 40,000 objects, 400 user defined prorammable objects and enhanced information on over 200 objects. The CGEM offers the portability of the Advanced Series and the precision of the CGE.