Celestron CGX-L Computerised GT Mount

Celestron CGX-L Computerised GT Mount & Tripod

The CGEM DX™ mount is the newest member of our fully computerized Equatorial mount series capable of carrying Celestron’s high-end 11" and 14" optical tubes

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See below for the Review from June 2017 of the UK astronomy magazine Astronomy Now

Includes Celestron's new PWI telescope control software, co-developed by PlaneWave Instruments. Software features multi-point mount modeling for extremely precise pointing accuracy

2 Year Warranty

Ergonomic Design: 
CGEM DX 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 DX series has a new innovative Polar alignment procedure called All-Star™.  All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment.  Another great feature of the CGEM DX sure to please astroimagers, is the Permanent Periodic Error Correction (PEC) which will allow users to train out the worm gears periodic errors, while the mount retains the PEC recordings.

For objects near the Meridian (imaginary line passing from North to South), the CGEM DX will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky.  The CGEM DX mount has a robust database with over 40,000 objects, 100 user defined programmable objects and enhanced information on over 200 objects.

Power Management:
Redesigned electronics deliver constant regulated power to the motors making them capable of driving the telescope even when not perfectly balanced.  This allows the CGEM DX to have the payload capacity of that of much larger mounts without sacrificing smooth tracking motion and pointing accuracy across the entire sky.

General Features

  • Holds a maximum instrument capacity of 50 lbs

  • CGEM DX Computerized Equatorial Mount

  • Ultra sturdy 2.75" steel tripod with Accessory Tray

Computerised Mount Features

  • 40,000 object database with over 100 user-definable objects and expanded information on over 200 objects

  • Proven NexStar computer control technology

  • Flash upgradeable hand control software and motor control units for downloading product updates over the Internet

  • New "All-star" Polar alignment uses any bright star for a quick and accurate Polar alignment

  • Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures, and user-defined slew limits

  • Custom database lists of all the most famous deep-sky objects by name and catalog number; the most beautiful double, triple and quadruple stars; variable stars; solar system objects and asterisms

  • Permanent Programmable Periodic Error Correction (PEC) - corrects for periodic tracking errors inherent to all worm drives

  • Steel worm gear and 90 mm pitch diameter brass worm wheel

  • Drive Motors - Low Cog DC Servo motor with integrated optical encoders offer smooth, quiet operation and long life. The motor armatures are skewed to minimize cogging which is required for low speed tracking

  • Internal cable wiring for trouble-free setup and transportation

  • Designated six-pin RJ-12 modular jack, ST-4 compatible guide port

  • Autoguide port and Auxiliary ports located on the electronic plate for long exposure astrophotography

  • Double line, 16-character Liquid Crystal Display Hand Control with backlit LED buttons for easy operation of goto features

  • RS-232 communication port on hand control to control the telescope via a personal computer

  • Includes NexRemote telescope control software, for advanced control of your telescope via computer

  • Precision machined 40 mm diameter steel Polar shafts supported by multiple tapered roller bearings and ball bearings

  • GPS-compatible with optional SkySync GPS Accessory

Technical Information:

Mount  : Computerized Equatorial 
Tripod  : Adjustable, Stainless Steel 
CD ROM  : NexRemote control software with RS232 cable 
Power Supply  : Car battery adapter 
Tripod Weight  : 45 lbs (20.41 kg) 
Mount Weight  : 41 lbs (18.6 kg) 
Counterweights  : 1 x 22 lbs 
Motor Drive  : Low cog DC Servo motors with encoders, both axes 
Computer Hand Control  : Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons 
Payload Capacity  : 50 lbs (22.68 kg) 
Latitude Range : 15° to 70° 
Slew Speeds  : Nine slew speeds: 5 °/sec, 2 °/sec, 1 °/sec, 64x, 16x, 8x, 4x, 1x, .5x 
Tracking Rates  : Sidereal, Solar and Lunar 
Tracking Modes  : EQ North and EQ South 
Alignment Procedures  : AutoAlign, 2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align 
Database  : 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects 
Power Requirements  : 12 VDC 3.5 Amps 
GPS  : Optional SkySync GPS Accessory

Includes These Celestron Technologies

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  • celestron-pwi-telescope-control-software
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  • starsense-technology.png?14738
  • wifi-technology.png?14738

Data sheet

Mount Type
CGEM Computerised Equatorial
Two Years

Specific References


Celestron CGX-L Review - Part 2

Celestron CGX-L Review - Part 2

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dCelestron CGX-L Review - Part 1

Celestron CGX-L Review - Part 1

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