Celestron - CGX 8" SCT Telescope and CGX Equatorial Mount

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The Celestron 12050 pairs an 8" SC telescope optical tube with the Celestron CGX EQ mount. The Celesron optical tube features XLT precision coated mirrors. The CGX mount weighs just 44 pounds with a modest estimated instrument capacity of 55 pounds, upgraded worm gears on both axes, AllStar alignment procedure, optical stop sensors, through mount wiring and available home position - this mount was built to outperform. Versatile mount is easy to transport thanks to two carry handles and has a dual saddle plate to accept both V and D series dovetails. Includes incredible full-featured control software for remote mount control.
SKU: CEL-12050
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Product Description

Celestron CGX 8" SCT Telescope and EQ Mount

About the Celestron 8" SC Telescope Optical Tube

The Celestron C8-A XLT has 843x the light gathering power of the human eye which dwarfs smaller telescopes of this scale. As a Schmidt-Cassegrain optical tube assembly, the corrector plate and primary mirrors render a focal ratio of f/10 which makes these type of catadioptric designs excellent for both visual and imaging as well as being compatible with many optical accessories to adjust its field of view and focal length. With the addition of Celestron's own StarBright XLT coatings light transmission has been enhanced as well, making the C8-A XLT great for planetary and terrestrial observing and wide field observing of deep sky objects.   For the visual astronomer, they'll be pleased to know this optical tube comes packaged with some accessories including a 25mm eyepieces (for a magnification of 81x), star diagonal, 1.25" visual back, and 6x30 finderscope.


  • 8 inch aperture
  • f/10 focal ratio
  • Schmidt-Cassegrain optical tube
  • StarBright XLT Coatings
  • 6x30 finderscope
  • 1.25" visual back
  • 25mm eyepiece
  • Star Diagonal

About the Celestron CGX Equatorial Mount

The Celestron CGX equatorial mount is the next evolution of EQ mounts. Designed for the future of astro-imaging and the high standards of today's hobbyists, the CGX mount features a sleek industrial design, smart engineering and improved electronics for a mount that rivals mounts costing two to three time as much.

Celestron CGX Mount Features: 

  • Spring loaded brass worm gears and stainless steel worm wheels on both axes for precise movement and control and lasting performance.
  • Ability to track 20 degrees past meridian. 
  • All Star alignment, choose bright night sky objects and the mount will guide you through a quick and simple alignment process for accurate tracking and pointing.  
  • Upgraded motors for higher torque.
  • Belt driven motors for liquid smooth movement and reduced vibration
  • USB ready hand controller
  • 2 Aux. ports. 
  • Wide latitude range of 3-65 degrees. 
  • Optical head sensors and built in hard stop, you'll never strike your tripod leg. 
  • Through mount wiring. 
  • Includes advanced control software, designed in partnership with PlaneWave. 
  • Compact and trimmed down head design, weighs just 44 pounds but carries 55 easily. 
  • Integrated carrying handles make it exceptionally easy to hold and move. 
  • Built in bubble level. 
  • Locking power adapter for a secure connection.
  • Captive hex wrench. 
  • Height marked legs for easy setup. 

A Lightweight Head Design with A High Load Capacity

Trimming down the body while increasing the load capacity allows the CGX to carry an instrument weight of 55 pounds, which Celestron states is a modest estimate of the mount's ultimate abilities. The mount itself weighs just 44 pounds and with the newly designed built-in carrying handles, it is remarkably easy to transport. Two, simple to assemble pieces, travel well making the CGX a great choice for the astronomer that plans to travel to a dark sky spot. The mount head attaches to the tripod top plate with hex bolts and a handy hex wrench is stored in the lower handle of the mount. Why not tool free? Because a hex wrench gives the right torque to properly attach the mount head to the tripod with a firm connection.  The mount includes a dual saddle plate that will hold either V or D dovetails. 

Auto Alignment - More Time Imaging and Less Time Prepping

Simple, yet crucial design improvements have made the CGX mount exceptionally easy to setup and polar align.  Celestron's AllStar polar alignment procedure was specially designed for the remote user and will allow you to align the mount quickly and accurately using any bright night sky objects.  Paired with a video polar alignment scope (available as an optional accessory), you will be able to polar align your CGX mount no matter where you're controlling it from. 

Outstanding Tracking Accuracy

The Celestron CGX includes two worm gears for both mount axes rather than traditional gears that have a tendency to catch and bind.  Slight catching eventually puts strain on the motors and can cause increase error over time.  Celestron's worm gears turn belt-driven motors so not only is accuracy improved and maintained, the mount's movements are exceptionally fluid and smooth with minimal vibration caused by the turning of the mount head.  

Smart On-Board Electronics and Design Features

Celestron's goal was to create an intelligent mount without complicating the user's experience. Borrowing from earlier Celestron technologies and improving upon them, the CGX features a wide array of alignment procedures including AllStar alignment. Simply find a series of bright night sky objects with your smartphone and the mount will polar align itself. The CGX will be the only Celestron mount to include all new software designed in partnership with PlaneWave, allowing you to seamlessly pair to your camera control software and completely remote control your entire setup through a wireless connection. Similar software sells for several hundred dollars.

Tracking accuracy and slewing speed have been greatly improved with precision worm gears on both axes of the CGX. Built in optical sensors, prevent the mount from striking the legs of the tripod and allow the mount to return to a home position in the event of an electrical surge or if you were to ever lose control of the mount from a remote location. An additional hard stop has been built-in as an additional fail-safe.

Celestron USB Hand Controller

While you can control the mount entirely from your wirelessly connected device such as a smartphone or laptop, a USB connected hand controller is included with the Celestron CGX mount, leaving behind the aging technology of RS232 connections. When connected, this is the only cord that will be on the exterior of your mount. All other wiring is run through the mount to eliminate any tangles, cord-wrapping and create a streamlined mount exterior maintaining the sleek industrial design that makes the CGX as beautiful as it is powerful.


Name Celestron - CGX 8" SCT Telescope and CGX Equatorial Mount
Manufacturer Celestron
Model CEL-12050
UPC 050234110976
In The Box Celestron 8" SCT Optical Tube CGE (D Series) Dovetail 1.25" Star Diagonal 40mm Eyepiece Celestron CGX Mount Head Adjustable Tripod with Height Marked Legs (1) 17lb. Counterweight Accessory Tray Nexstar+ USB Hand Control & Cable Universal Control Software Drivers DC Power Cable
Telescope Aperture 7.1" - 8"
Accessory Tray Yes
Alignment Procedures AllStar
Aperture 8 in. (203.2mm)
Case None
Eyepiece 1 40mm Plossl
Finderscope 8x50 Optical
Focal Length 2032mm
Focal Ratio f/10
Focuser Crayford
Highest Useful Magnification 480x
Housing Aluminum
Limiting Stellar Magnitude 14
Lowest Useful Magnification 29x
Mount German Equatorial - GoTo
Optical Coatings XLT
Optical Design 8" Schmidt Cassegrain
Optical Tube Aluminum
Optical Tube Length 17 in.
Optical Tube Weight 14 lbs.
Power Requirements Runs best on 5 amp
Resolution (Dawes) .69 arc seconds
Resolution (Rayleigh) .57 arc seconds
Secondary Mirror Obstruction 2.7 in. (69mm)
Secondary Obstruction (%) 34%
Star Diagonal Included, 1.25"
Warranty 2 Year


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In the Box

Celestron 8" SCT Optical Tube
CGE (D Series) Dovetail
1.25" Star Diagonal
40mm Eyepiece
Celestron CGX Mount Head
Adjustable Tripod with Height Marked Legs
(1) 17lb. Counterweight
Accessory Tray
Nexstar+ USB Hand Control & Cable
Universal Control Software Drivers
DC Power Cable