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Celestron CGX-L Computerized German Equatorial Telescope Mount

SKU : CE-91531

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  • The perfect mount for large optical tubes.
  • Computerized EQ Mount with Tripod.
  • 75 lb load capacity.
  • Excellent for both imaging and visual astronomy.


Product Details


    Celestron's CGX-L Computerized German Equatorial Telescope Mount is designed for observatories and travel systems and is capable of carrying some of the largest telescopes with ease. The Mount Head only weighs 45 lb yet is able to support a 75 lb payload capacity.


    Key Features

    Celestron CGX-L Belt Transfer & Larger Worm Wheel

    Heavy-Duty Belt Transfer & Large Worm Wheels

    A lot of mounts today use spur gears to transfer rotational motion from the motors to the worm wheels. The problem with spur gears is that there is an intermittent amount play between the teeth of the gears. This play introduces mechanical backlash and hinders tracking performance, especially when autoguiding. By using a belt transfer the backlash mentioned above virtually disappears and tracking accuracy is greatly improved.

    The CGX-L has large, brass, spring-loaded 144 mm diameter worm wheels to handle heavier loads and track more accurately. Together with the stainless steel worm gears, they provide excellent gear mesh and reduce friction.

    CGX-L Longer Dual Saddler

    Long Dual Saddle Dovetail

    Swapping telescopes is now a breeze. Smaller telescopes often use the lighter, less expensive Vixen-style dovetail bar. Larger telescopes are often equipped with the wider Losmandy-style dovetail bar for its sturdiness. The convenient saddle on this mount clamps down on both types of dovetails.

    The saddle on this mount has been elongated to 270 mm (approximately 11 inches) to better support larger optical tubes. This larger clamping surface area will reduce flexure and better stabilize a telescope.

    Built-in just below the dovetail saddle is two auxiliary ports and an autoguider port. This makes it easy to plug in extra accessories like the StarSense, WiFi module or ST-4 compatible autoguider. Since the cables for the port are run through the mount, you will no longer have to worry about cable snag.

    Celestron CGX Tripod

    Improved Tripod

    The Celestron tripod was completely redesigned! It has a wider stance that keeps a lower center of gravity to reduce vibrations and uses massive 70 mm stainless steel tripod legs for improved stability under heavy loads. Each Leg has line-height markings which makes it quick and easy to set your tripod to the right height.

    The Accessory tray has been redesigned as well. It was reshaped so it can now remain attached when the tripod is folded up. It now holds three 1.25-inch eyepieces, two 2-inch eyepieces, and one smartphone/tablet in an upright position.

    Celestron CGX-L Carry Handles

    Ergonomic Carry Handles

    These handles really speed up the setup and breakdown times for an astronomer who is on the go. No longer will you have to awkwardly lug around the mount head or have trouble centering it over the top of a tripod or pier.

    Celestron CGX-L Latitude Adjustment

    Altitude Adjuster

    Other EQ mounts are difficult and uncomfortable to polar align when a mounted telescope is mounted to it. Taking the telescope off the mount would be easier, but would give you a very inaccurate polar alignment once you put on an OTA. Celestron addressed this by using an armature that rides on ACME threaded rod. This allows you to easily adjust the mount with one hand under load!

    Celestron CGX-L Homing & Limit Sensors

    Homing Sensors

    Homing sensors are an awesome feature to have in an observatory setting. If power is lost throughout the night you can "home" the mount and resync on that position rather than creating an entirely new pointing model.

    It also makes a great position to park the telescope after a night of imaging. The next night you want to observe, just turn the mount on and sync.

    Celestron CGX-L Internal Cabling

    Internal Cabling

    Cable management can get messy. Where some telescope mounts can get caught on their own cables and ruin a night of observing, the CGX-L avoids this entirely. The cables that connect the RA and Declination motor to the motor control are all wired inside of the mount.

    In fact, if you wish to directly connect to the mount to a computer you no longer have to go through the hand controller. This mount has a USB 2.0 B type connector on the rear.

    Celestron PWI Telescope Control Software

    Celestron PWI Telescope Control Software

    Celestron and Planewave Instruments have teamed up to develop a complete planetarium/mount control software. This program unleashes the full pointing accuracy potential of the CGX-L.

    PWI employs PointXP mount modeling, which accepts numerous star alignment points for the best possible accuracy. PointXP (also used in StarSense AutoAlign accessory) goes beyond the pointing capability of a traditional hand control. By adding multiple star alignment points, PWI accounts for various types of alignment errors, including instrument flexure.

    With a direct USB connection from your PC to the USB port on the mount, PWI’s Sky Viewer display makes for easy target selection or find your favorite deep-sky object in PWI’s extensive object database.

  • specifications

    Free ShippingYes
    Head DesignEquatorial
    Instrument Capacity75 lb
    Latitude Range3 to 56 Degrees
    Mount Head Weight52.6lb
    PortsAutoguide Port
    PortsHand Controller
    PortsUSB 2.0 max
    Slew Speed4 Degrees Per Second
    Telescope ConnectionDual Vixen & Losmandy
    Tracking ModesEQ North
    Tracking ModesEQ South
    Tracking RatesLunar
    Tracking RatesSidereal
    Worm Wheel Diameter114mm
  • included items

    • CGX-L Equatorial Head.
    • CGX-L Tripod & Accessory Tray
    • 1 x 22 lbs Counterweight.
    • NexStar+ Hand Control.
    • DC Power Cable (plugs into cigarette lighter socket).
    • 8mm Allen Wrench (contained in rear carry handle).

Product Reviews

Customer Reviews
5.0 Based on 14 Reviews
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Fred F.
United States United States

Performance with Hyperstar is the ultimate system

After purchasing Hyperstar and using it with my C-14 Edge, I am getting 2 minute unguided exposures yet I very seldom need more than 40 seconds to get outstanding images. Before you consider spend over $10,000 for an equatorial mount think about the fact that I am getting great images using the CGX-L mount and Hyperstar. So far, I have not run into a situation where I needed a guide scope or a super expensive mount to obtain premium astro photos. I also suggest purchasing the IDAS Nebula Booster filter, as well, and your should be able to maximize your needs without depleting your savings account. I have spent hours looking at all brands of equatorial mounts and using the system I am using is a fantastic economical system where you need not look any further. I am not a person who wants to stack images more than 1 hour on a single image, and this system along with the Mallincam 26ctec camera allows me to optimize my time and effort for the results I am satisfied with. I wanted to provide this information for those who would rather have less expense, more time, and a successful night of deep sky imaging.

OPT Telescopes Celestron CGX-L Computerized German Equatorial Telescope Mount ReviewOPT Telescopes Celestron CGX-L Computerized German Equatorial Telescope Mount ReviewOPT Telescopes Celestron CGX-L Computerized German Equatorial Telescope Mount Review
Charles V.
United States United States

Celestron CGX-L Mount

I’ve only had the mount for a short time but so far everything about it is excellent. I only have a light load on it but I needed a very stable mount because I have wind often and I didn’t want that to prohibit astrophotography. I’m impressed that there is nearly no backlash. Dec reversal is nearly instantaneous. There is no slop in the gears so the spring loaded worm gears are working. I looked at periodic error and I estimate that it’s about 10 arcseconds. A smaller number would have been nice but it’s very smooth, no erratic movement, so an autoguider would have no issue guiding it out. I performed drift alignment on the mount and it was a breeze. The az/el movements are smooth and precise. I’ve had a number of mounts and some of them have had issues with reversing the Dec causing movement in RA. No trace of that with mount. I’ve found a bit of a learning curve with the hand controller as the way the functions are implemented are a bit different from other hand controllers. So far I have no reason to think the CGX-L won’t be a great mount for astrophotography.

Joe F.
United States United States

Polar Alignment is Critical

Great, but it took a while for me to get it going for Astrophotography. I did only visual for about a year using the 14 edge hd and was satisfied with the tracking but I did not have much success getting more than 4 second exposures, as the stars became elongated and the DSO's were blurry. I even ordered another GEM because I thought that I had a lemon mount for astrophotography. Thank goodness the mount I ordered was on back order, so while I was waiting for my new mount to replace the CGX-L, I ordered the Celestron polar alignment scope. WOW!!!!, once I polar aligned my scope I was getting 2 minute exposures and every aspect of the mount improved over 100%!!! I use a live video stacking Mallincam camera and use my system as a travel scope so I was not interested in doing long exposures and the 2 minute exposure is plenty of time to get fantastic videos and live stack images. The bottom line is be SURE to POLAR ALIGN before each imaging session and you will have a mount that WILL meet your needs at the best price available. So I cancelled my order for the new GEM that I do not need and saved $5000, in the process. So the malfunction was not the CGX-L, it was my fault for not following recommendations to Polar Align!!! OPT did refund my order on the GEM I did not need. I can say with joy, that OPT and Celestron are a Great Bunch to purchase from, obtain information from, and maintain a customer/vendor friendship with. Thanks Again OPT and Celestron!!!!!!!!

OPT Telescopes Celestron CGX-L Computerized German Equatorial Telescope Mount ReviewOPT Telescopes Celestron CGX-L Computerized German Equatorial Telescope Mount Review
United States United States

CGXL the ultimate mount?

I've run a CGE mount for 15 years pushing the load limits, held out as mounts come and go, and then the CGXL came out, heard a lot of good things about it, time to step it up. WOW! Last night I rough aligned towards North and set altitude using the gauge on the mount nothing fancy, performed a two-star alignment, the moon was super bright it was late done for the night. Today I used 'last alignment' to see if I could find any planets during the day. I was stunned to see Mercury, Venus, and Sirius slewed almost directly centered in the eyepiece first time! Amazing! This mount far exceeds expectations ! The feel, the sound, 'Go to' accurate tracking everything about this mount is all business, looking forward to imaging stay tuned for an update. Note: If you have an observatory you will need an adapter plate to attach the mount to the pier, should be mentioned if purchasing w/out the tripod? The 110-volt power supply does not come with it. The manual is a PDF file, would prefer a hard copy. Cheers!

Gordon R.
United States United States

Dead on tracking and pointing.

Easy to use and VERY accurate. Manual, precise polar alignment doesn't really take that long and with a high power reticle eyepiece very accurate. Doing high power solar and lunar I can walk away for half an hour and its still right on feature I was observing. I'm sure it would require little or no adjustment after an hour. Every thing high quality. Well worth the wait the recent wait.. I have two. One for 6" refractor and one for 14" SCT. Strongly recommend GPS unit. Adds significantly to accuracy and makes startup fast. Also dead centers Mercury, Jupiter and Saturn after sunrise and midday.

Kenneth H.
United States United States

CGX-L first test.

So far I love it. No backlash! It works well with the external GPS and star sync. It would be nice if they built in a USB hub. It would also be nice if it had a built in GPS. Having the power and hand pad plug in stationary was a huge improvement. Shipping by OPT was fast.