Celestron CGX 800 Computerized Telescope

  • An 8-inch Schmidt Cassegrain Telescope.
  • German Equatorial Mount.
  • StarBright XLT Optical Coatings.
  • NexStar+ Hand Controller.
  • Internal Cable Wiring.
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  • Regular price $4,357.95
  • $2,999.00
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Celestron CGX 800 Computerized Telescope


The CGX 800 Telescope by Celestron is a 203 mm (8-inch) Schmidt-Cassegrain Telescope capable of gathering 843X more light than the human eye and the precise f/10 optics of the Celestron C8 SCT offer up an incredible .57 arc seconds of resolution spread out over a 0.62-degree angular field of view. With a limiting magnitude factor of 14 and a practical magnification limit of 480X, it delivers remarkable planetary and lunar views.

Features of the CGX 800 Telescope by Celestron

  • Large Altitude and Azimuth adjustment knobs for quick and easy procedures and adjustments.
  • The intuitive All-Star system allows users to choose any bright star from the NexStar hand control, while the software calculates and assists with polar alignment. 
  • The CGEM-800 database will provide over 40,000 objects, 100 user defined programmable objects and enhanced information on over 200 objects for your celestial viewing pleasure.
  • Spring-loaded worm gears and belt drives minimize backlash. Internal cabling means power and accessory ports do not move with the mount, and there are also home and limit switches, as well as internal hard stops for both RA and Dec to prevent cable wrap and tripod strike.
  • There is a clear window built into the motor covers, letting you keep an eye on the pulleys and belts.

Celestron CGX 800 for Astrophotography

Attach a camera and experience its astrophotography features. Not only will it track well past the meridian for uninterrupted imaging through the most ideal part of the sky, but the Permanent Periodic Error Correction (PPEC) will allow users to train out the worm gears periodic errors, while the mount retains the PEC recordings.

Autoguide port and auxiliary ports are conveniently located on the electronic plate for long exposure astrophotography and include a designated six-pin RJ-12 modular jack and ST-4 compatible guide port.

NexRemote telescope control software provides advanced control of your telescope through the RS-232 communication port on the hand controller. Software features include mount calibration, database filter limits, hibernate, five alignment procedures, and user-defined slew limits.

Upgradeable flash is accessible by going online to update your hand control software and motor control units. You can even add an optional Celestron GPS unit!

Included Technology

All-Star Polar Alignment

Get ready for a night of astroimaging with your mount faster than previously thought possible with All-Star Polar Alignment. This innovative software solves the time-consuming problem of trying to pinpoint the North Celestial Pole.

Compatible Technology


The new Lithium Phosphate (LiFePO4) battery chemistry has significant advantages over other battery chemistries, great for those Astronomers on the go.

Starsense Technology

Celestron’s patented StarSense Technology makes it easier than ever to locate objects in the night sky, even if you’ve never used a telescope before. Turn it on and push ‘Align.’ In about three minutes, you’re ready to observe!


WiFi technology encircles the globe in a web of connectivity, knowledge, and information. Now, Celestron is using that same technology to allow stargazers to connect to the night sky and enhance their experience of the cosmos in fun and unique ways.


Aperture203.2 mm (8")
Camera/Eyepiece Connection24 tpi
Dawes Limit0.57 arcseconds
Focal Length2032 mm
Focal Ratiof/10
Free ShippingYes
Head DesignGerman Equatorial
Hightest Magnification406.4x
Instrument Capacity55 lbs
Latitude Range3 to 65 Degrees
Light Gathering Power843x
Limiting Magnitude15.3
Mount Head Weight44lbs
Optical DesignSCT
PortsAutoguide Port
PortsHand Controller
PortsUSB 2.0
Power Consumption12V 5A max
Secondary Obstruction64mm
Slew Speed5 Degrees Per Second
Telescope ConnectionDual Vixen & Losmandy
Tracking ModesEQ North
Tracking ModesEQ South
Tracking RatesLunar
Tracking RatesSidereal
Tube Diameter226mm
Tube Length432mm
Tube Weight12.5 lbs
Warranty2 Year Warranty


  • 203 mm (8-inch) Schmidt Cassegrain OTA.
  • Celestron CGX Mount.
  • CGX Computerized Equatorial Mount.
  • CGX Tripod with 2-inch Adjustable Steel Legs.
  • Accessory Tray.
  • NexStar+ Hand Controller.
  • 6x30 Optical Finder.
  • 1.25-inch Star Diagonal.
  • 1.25-inch 25 mm Eyepiece.
  • 2 Counterweights, 11-pounds each.
  • DC Power Cord/ Cigarette Lighter Adapter.
  • NexRemote CD ROM Software.
  • 2 Year Warranty.