Celestron - CGX 9.25" EdgeHD Telescope and CGX EQ Mount - 12056

Be the first to review this product

Review and collect 50 points.

Availability: In Stock

With this product, you earn 4199 loyalty point(s). Find more about this!

Bread Checkout
A perfect match, Celestron's EdgeHD optics are free from chromatic and spherical aberrations and, with the Celestron CGX, makes a great choice for an imaging telescope. The Celestron CGX mount weighs just 40 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-12056
Manufactured by:

Product Description

Celestron CGX 9.25" EdgeHD Telescope and EQ Mount

About the Celestron 9.25" EdgeHD Telescope Optical Tube

The Celestron EdgeHD 925 is a catadioptric based optical tube assembly with the EdgeHD optical system to reduce coma. This makes it outstanding for both visual astronomy and astrophotography and is capable of imaging a wide variety of celestial objects ranging from planets to distant galaxy clusters. With the addition of the StarBright XLT™ coatings by Celestron, excellent and efficient light transmission is realized. Since most Schmidt-Cassegrain designs normally have a default focal ratio of f/10 but can be reduced by using the Fastar™ system of removable secondary mirrors to create a blazing- fast focal ratio of f/2 for wide field and fast astrophotography with most deep sky objects. This is a step up from the regular Schmidt-Cassegrain design!

  • Catadioptric system
  • EdgeHD optical system to reduce coma on edges of field of view
  • 2500mm focal length
  • 9.25" aperture
  • StarBright XLT Coatings
  • 9x50 Finderscope
  • 23mm Luminos Eyepiece - 2"
  • 2" Star Diagonal
  • 1.25" Visual Back
  • Dovetail slide bar for mounting the CGE mount
  • Fastar compatible to transform f/10 to f/2

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 40 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 40 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 9.25" EdgeHD Telescope and CGX EQ Mount - 12056
Manufacturer Celestron
Model CEL-12056
UPC 050234120562
In The Box Celestron 9.25" EdgeHD Optical Tube 2" Star Diagonal w/ 1.25" Adapter 23mm Luminos 2" Eyepiece 9x50 Finder with Bracket CGX Dovetail Celestron CGX Mount Head (2) 11lb. Counterweights 2" Adjustable Tripod with Height Marked Legs USB Nexstar+ Hand Control & Cable Universal Control Software Drivers DC Power Cord
Accessory Tray Yes
Alignment Procedures AllStar
Aperture 9.25 in.
Approx. Weight 104lbs. with Counterweights
Case None
Dovetail Compatibility D Series (Losmandy/ CGE)
Eyepiece 1 23mm Luminos 2" Wide Field
Eyepiece 1 Magnification 102x
Finderscope 9x50 Optical
Focal Length 2350mm
Focal Ratio f/10
Focuser Crayford
Highest Useful Magnification 555x
Housing Aluminum
Latitude Range 3º-65º
Light Gathering Power 1127x
Limiting Stellar Magnitude 14.4
Lowest Useful Magnification 34x
Material Aluminum
Mount German Equatorial - GoTo
Optical Coatings XLT
Optical Design EdgeHD
Optical Tube 9.25" EdgeHD
Optical Tube Length 22in (559mm)
Optical Tube Weight 21 lbs.
Power DC Power Cord Included
Resolution (Rayleigh) .59 arc seconds
Resolving Power .49 arc seconds
Secondary Mirror Obstruction 3.35in (85mm)
Secondary Mirror Obstruction by Area 36%
Secondary Mirror Obstruction by Diameter 13%
Star Diagonal 2" with 1.25" Adapter
Tracking Rates Sidereal, Solar, Lunar
Tripod 2" Steel Adjustable Leg 47.25” to 77.5” including EQ head
Warranty 2 Year


How do you rate this product? *

In the Box

Celestron 9.25" EdgeHD Optical Tube
2" Star Diagonal w/ 1.25" Adapter
23mm Luminos 2" Eyepiece
9x50 Finder with Bracket
CGX Dovetail
Celestron CGX Mount Head
(2) 11lb. Counterweights
2" Adjustable Tripod with Height Marked Legs
USB Nexstar+ Hand Control & Cable
Universal Control Software Drivers
DC Power Cord

FAQ / Downloads