Celestron - CGEM II EQ Equatorial Mount - 91523

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  • Celestron's CGEM II equatorial mount is the perfect choice for users looking for a stable and accurate mount for larger optical tubes (9.25" and 11") or heavier imaging systems.

  • Dual saddle plate accommodates any dovetail - D or V series.

  • The CGEM II includes Celestron's All Star alignment procedure, an updated ergonomic design and Celestron's USB hand controller.

SKU: CEL-91523
Manufactured by:

Product Description

Celestron - CGEM II Equatorial Mount

Celestron has updated the ever popular CGEM mount. The Celestron CGEM II equatorial telescope mount includes new ergonomic design features, the All Star alignment procedure, and legendary Celestron mount performance.  An instrument capacity of up to 40 pounds allows this mount to carry an 11" optical tube with ease.  

The CGEM II includes extra large Altitude and Azimuth adjustment knobs so you can polar align easily, even in cold weather while wearing gloves. A dual saddle plate will accept both V and D series dovetails. Internal mount wiring keeps the exterior of your mount free from cables and prevents cable tangling or wrapping. Celestron's AllStar polar alignment procedure allows you to use any star in the night sky whether the celestial pole can be seen or not.  The results are accurate polar alignment, tracking, and pointing.  The Celestron CGEM II will track far beyond the meridian for uninterrupted tracking.  Permanent Periodic Error Correction (PEC) will train the mount's worm gears over time to remove natural errors that occur during tracking.  

Included with the Celestron CGEM II equatorial telescope mount is a USB hand controller with over 40,000 objects and 100 user-defined objects plus enhanced information on over 200 objects. The mount's tripod include height marked adjustable legs so you can quickly setup.   If you were considering a Celestron AVX mount but worried it would be too lightweight, the CGEM II is a perfect fit providing a stable base for larger optical tubes and heavier imaging systems.  


Name Celestron - CGEM II EQ Equatorial Mount - 91523
Manufacturer Celestron
UPC 050234915236
Model CEL-91523
In The Box Celestron CGEM II Mount Head Adjustable Tripod with Height Marked Legs USB Hand Controller USB Cable
Alignment Procedures 2-Star Align, 1-Star Align, Solar System Align, Last Alignment, Quick Align
Computer Hand Control 2 line x 18 character backlit Liquid Crystal Display, 19 LED backlit buttons, USB 2.0 port for PC connection
Counterweights 1 x 17 lbs
Database 40,000+ objects, 100 user defined programmable objects Enhanced information on over 200 objects
Dovetail Compatibility Dual saddle plates (Vixen and CGE saddle)
Included Accessories CGEM II Equatorial Head |Tripod | Accessory Tray | 1 x 17 lbs counterweight | NexStar+ Hand Control | DC Power Cable (item#18769) | Hand Control Holster
Latitude Range 15° - 70°
Motor Drive DC servo motors
Mount Computerized Equatorial
Payload Capacity 40 lbs
Periodic Error Correction Yes
Power Requirements 12V DC, 3.2 amps
Slew Speeds 9 slew speeds - max speed 4.5°/second
Tracking Modes EQ North andc EQ South
Tracking Rates Sidereal, Solar and Lunar
Tripod Legs 50.8mm (2") Steel tripod with graduated markings on lower section


Review and collect 50 points.
Review by:
This is my first GEM. It seems to be rock solid. Goes together well. I have used it with a 4" refractor and an 8" SCT. I have used both with eyepieces and a DSLR camera. Mount performed very well.
(Posted on 8/13/2020)
Review by:
Having bought this mount a while back, I have found this to be a great mid size work horse of a mount. It will properly support most any telescope that you want to but on it for both visual and astro-photography. It is not to heavy to carry out in the field, but still solid enough to be place in a permanent observatory. The saddle will hold both V and D type bars and gives a good solid feel to the telescope. I use mine mostly when i want to do some serious photography up in a dark site. I feel it does a better control of the telescope for tracking when using my larger SCT or Refractor telescope. I have the AVX mount also so i can say if you plan on using larger scopes this would be a good mount to use over the AVX. It is a bit heaver but that brings some stability to the imaging process. Well built and the tripod all seems to perform very well. Easy to set up and align and an overall great mount. I wish Celestron would have improved the method to do polar alignment just a bit, you have to loosen the mount to move it wish is just a bit of a pain, but you can still make it work. (Posted on 11/10/2019)
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In the Box

Celestron CGEM II Mount Head
Adjustable Tripod with Height Marked Legs
USB Hand Controller
USB Cable