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° per second, you will be able to instantly point to any of the celestial objects in the database.
ERGONOMIC DESIGN - 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.
INNOVATION - The CGEM 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 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.
PERFORMANCE - For objects near the Meridian (imaginary line passing from North to South), 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, 100 user defined programmable objects and enhanced information on over 200 objects.
Celestron's CGEM mount is the perfect fit between the Advanced Series and CGE Series. Offering the portability of the Advanced Series and the precision of the CGE.

COMPUTERIZED MOUNT FEATURES
- 40,000 object database with over 100 user-definable objects and expanded information on over 200 objects
- Proven NexStar computer control technology
- Redesigned electronics deliver constant regulated power to the motors making them capable of driving the telescope even when not perfectly balanced
- 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
- Meridian preference for slewing - allows you to approach an object from the side of the Meridian that maximizes tracking (and imaging) time
- 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
- Solar System alignment method - allows you to align your telescope and view the moon and planets during the day
- Permanent Programmable Periodic Error Correction (PEC) - corrects for periodic tracking errors inherent to all worm drives
- Custom Rate 9 feature allows you set maximum slew rate
- Tandem mode allows you to star align the mount even when positioned for tandem scope use
- 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

Flash Upgradable Hand Controller

Users can upgrade their VX mount's operating software via the Internet. Current upgrades can be found through our downloads section and on each telescope's product page. To receive an announcement when upgrades have been added, make sure you are subscribed to our mailing list.

NexRemote Technology for Celestron Computerized Telescopes

Celestron has been in the forefront of computerized telescope technology for over two decades. We have taken this expertise in telescope technology one step further by introducing the NexRemote™ Telescope Control Software. NexRemote allows the user to control their Celestron computerized telescope from their personal computer. Everything that is done using the telescope's hand control can now be done remotely from a PC or laptop. This software was developed for Celestron's high-end telescopes that use the NexStar control system.
NexRemote provides full emulation of every aspect of the Celestron Computerized Hand Control including:
- Alignment in any tracking mode
- Database of objects
- User objects
- Hibernation
- Connect to popular planetarium programs
Computer:
- PC compatible (Note: 233MHz Pentium II or better is required)
- Windows 98SE or better is required for basic operation
- Windows NT, 2000, or XP is required for Virtual Port operation
- NexRemote will not work with 64 bit version of Windows Vista
- DirectX 7 or later must be installed. (DirectX can be obtained for free by clicking here.)
- SAPI 5.1 or later is required for speech support. ( This is free to download and can be obtainedhere.)
- MDAC 2.5 or later is required for tour editing. (If no database entries are displayed when you launch NexTour, you can download this update for free by clicking here.)
Port:
- RS232 Serial Port (or USB-to-Serial / PCMCIA-to-Serial adapter)
Cable:
- PC Port (programming) or HC Serial cable
Gamepad:
- Logitech Wingman Cordless Rumblepad
- Logitech Cordless Rumblepad 2
- Logitech Wingman Rumblepad USB
- Saitek P3000 Wireless Pad
NOTE: Virtually any gamepad can be configured to work with NexRemote. Read the help files for details.
SPECIFICATIONS
HEAD DESIGN | Equatorial |
TRIPOD OR PIER INCLUDED? | Yes |
GPS INCLUDED? | No |
ELECTRONICS INCLUDED | Computerized - GoTo |
MANUFACTURER | Celestron |
| |
HAND CONTROLLER INCLUDED | Celestron CG Computerized |
# OF COUNTERWEIGHTS INCLUDED | 1 |
WEIGHT OF COUNTERWEIGHTS | 17 lb. |
TRACKING RATES | Lunar, Sidereal, Solar |
OBJECTS IN DATABASE | 40,000 + |
MOUNT SPECIAL FEATURES | Spring Loaded Head Knobs |
SADDLE WIDTH | D Series |
WEIGHT CAPACITY | 40 lbs. |
LEG LENGTH | Not supplied by manufacturer |
ACCESSORY TRAY INCLUDED? | Yes |
MATERIAL | Steel |
POWER SUPPLY INCLUDED | DC Battery Adapter |
TRACKING MODES | EQ North, EQ South |
LATITUDE RANGE | 15º - 70º |
WEIGHT OF TRIPOD/MONOPOD | 17 lbs. |
WEIGHT OF HEAD | 41 lbs. |