Celestron's CGX Equatorial 800 HD combines the innovative CGX computerized equatorial mount with its acclaimed EdgeHD optical system.

With 8" of aperture and Celestron's premium StarBright XLT coatings, the CGX 800 HD gives you over 800 times the light gathering power than the unaided eye and is the lightest and most portable telescope in its class.

 

See the Universe in HD | True Astrograph Quality

EdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce off-axis star coma and provide an astrograph-quality flat focal plane all the way to the edge of the field of view.

• Experience amazing optical performance with EdgeHD’s flat-field and coma-free optics for pinpoint stars all the way to the edge of today’s largest imaging sensors and widest eyepieces
• Aluminum optical tube with tube vents featuring an integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror. Sturdy mirror support knobs hold the mirror in place and reduce image shifts during imaging
• Versatile design accommodates 3 focal ratios: native f/10, f/7 with the addition of a focal reducer, or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories

 

CGX Mount and Tripod Features | Improved Performance

The new CGX was designed to better support your telescope for both visual and astro-imaging pursuits. It is Celestron's new equatorial backbone to support a wide range of telescopes.

• Sturdier and more rigid with quicker dampening time
• Increased load capacity to 25kg
• Improved motors provide more torque, better slewing and tracking under heavy loads
• Heavy duty belt-drive system minimizes backlash while providing smooth motor operation under heavy loads
• Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh
• Internal cabling for worry-free remote operation. Power input and accessory ports remain stationary while the mount slews to avoid snags
• Internal hard stops for both axes prevents cable tension and tripod strike
• Internal optical sensors on both axes for simple and safe remote operation
• Home sensors allow the mount to always start in the index position regardless of orientation before a power reset
• Limit sensors automatically shut off slewing or tracking before reaching the hard stop fail safe
• Brand new control software developed for professional level control operation and imaging
• Software includes multi-point mount modeling for extremely precise pointing accuracy and many more additional features for remote astroimaging
• Wider tripod stance for improved stability
• Adjustable EQ head position to optimize center of gravity over the tripod and fully utilize the increased 3°-65° latitude range
• Dual-fit CG-5/Vixen and CGE/Losmandy dovetail saddle

 

Improved Tripod Includes:

• 2" steel legs with height index marks for quick leveling
• "Jack of all trays" to hold three 1.25" eyepieces, two 2" eyepieces, your smartphone, or other accessories
• +20° of additional tracking past the meridian on either side
• Tripod legs can be collapsed with accessory tray installed for faster setup and transport

 

Mechanical Features

• Mirror clutches - Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor).
• Tube vents - Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 95-micron micromesh filter guaranteed to let warm air out without letting dust in.
• Fastar versatility - EdgeHD is the most versatile imaging telescope available today. At its native f/10, you can achieve the image scale necessary to capture the smallest of deep sky objects. Add the optional reducer lens—custom-designed for your size EdgeHD tube—and you can increase your field of view without sacrificing optical performance. A Barlow gives you added power for high-resolution planetary, lunar and solar imaging. All EdgeHD optical tubes are Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third party lens accessory for ultra-fast f/2 wide field imaging.

 

Improved Ergonomics

• Two handles for easy pickup and transport
• New ergonomically designed dovetail clamping knobs
• Innovative and improved polar alignment adjustment system
• All-new ergonomic adjustment knobs with reduced friction for smooth and easy positioning under full loads 
• Optional add-on polar axis finderscope

 

Electronics

• NexStar+ hand control with USB port
• Two AUX accessory ports to support wireless/WiFi alignment and operation with StarSense AutoAlign and SkyPortal WiFi Module accessories (sold separately)
• USB 2.0 port, used to connect directly to PC with included software
• Autoguider port
• PPEC ready
• Threaded 12VDC power input barrel connector
• Internal Real Time Clock (keeps time and site information saved

 

Compatible With

 

 

 

Full Specifications

Optical Tube Assembly (OTA)

Optical Design	EdgeHD
Aperture	203.2mm (8")
Focal Length	2032mm (80")
Focal Ratio	f/10
Included Eyepiece	25mm (81x Magnification)
Finderscope	6x30
Star Diagonal	1.25"
Optical Tube Construction	Aluminium
Highest Useful Magnification	480x
Lowest Useful Magnification	29x
Limiting Stellar Magnitude	14
Resolution (Rayleigh)	0.69 Arc Seconds
Resolution (Dawes)	0.57 Arc Seconds
Secondary Mirror Obstruction	64mm (2.5")
Optical Coatings	StarBright XLT
Optical Tube Length	432mm (17")
Optical Tube Diamater	238mm (9.37")
Optical Tube Weight	5.67kg
Dovetail	CGE Dovetail Bar

Computerised Mount

Mount Type	Computerised Equatorial
Instrument Load Capacity	25kg
Height Adjustment Range (Including Mount and Tripod)	1200.15mm - 1968.5mm
Tripod Leg Diameter	50.8mm
Latitude Adjustment Range	3° - 65°
Mount Head Weight	20kg
Accessory Tray	Yes
Tripod Weight	8.7kg
Weight of Counterweights	2 x 11lbs (5kg)
Slew Speeds	9 Slew Speds (Max Speed 4° / Second)
Tracking Rates	Sidereal, Solar and Lunar
Tracking Modes	EQ North & EQ South
GPS	N/A
Dovetail Compatibility	Dual saddle plates (Vixen and CGE saddle)
Auxiliary Ports	2 Aux ports (Hand Control can use either Aux port)
Autoguide Port	Yes
USB Port	Yes (On Hand Controller)
Power Reqiurements	12V DC, 4 amps
Motor Drive	DC Servo Motors
Alignment Procedures	2-Star Align, 1-Star Align, Solar System Align, Last Alignment, Quick Align
Periodic Error Correction	Yes
Computerised Hand Controller	Double Line, 18 Character Liquid Crystal Display; 19 Fiber Optic Backlit LED Buttons and USB 2.0 Port for PC Connection
NexStar+ Database	40,000+ Objects with 100 User Defined Programmable Objects and Enhanced Information on Over 200 Objects
Software	PWI Telescope Control Software, Celestron Starry Night Special Edition Software, SkyPortal App

Recommended Accessories

	Celestron StarSense AutoAlign Accessory Automatically align your telescope in moments! With a StarSense AutoAlign Accessory, you will no longer need to align your telescope by manually inputting data.
	Celestron StarSense AutoGuider A new autoguiding tool built for Celestron computerised telescopes. Not only can this be used to align your telescope in just 3 minutes, it improves your scope's tracking accuracy and replaces the need to get a separate guide scope and guide camera to do so.
	Celestron NeXYZ Smartphone Adapter With the Celestron NeXYZ Smartphone Adapter, you can take images or videos through your telescope eyepiece using your smartphone. This is a great way to get started in astrophotography.
	Celestron 1.25-inch Eyepiece and Filter Kit Expand your viewing capabilities with a complete 1.25-inch eyepiece and filter kit! Includes 5 eyepieces, a 2x barlow lens and 7 filters, and a convenient carry case.
	Celestron Dew Shield DX for 6" & 8" OTAs Reduce dew formation on your OTA from affecting your viewing experience with this handy dew shield.
	saxon Optical Lens Cleaning Kit Keep your telescope in top shape by protecting it from dust and debris!

	Celestron StarSense AutoAlign Accessory Automatically align your telescope in moments with this accecssory!
	Celestron StarSense AutoGuider This autoguider improves your scope's tracking accuracy and replaces the need to get a separate guide scope and guide camera. It can also be used to align your telescope in just 3 minutes!
	Celestron NeXYZ Smartphone Adapter Take images or videos through your telescope eyepiece using your smartphone. This is a great way to get started in astrophotography.
	Celestron 1.25-inch Eyepiece and Filter Kit This complete kit includes 5 eyepieces, a 2x barlow lens and 7 filters, and a convenient carry case.
	Celestron Dew Shield DX for 6" & 8" OTAs Reduce dew formation on your OTA from affecting your viewing experience with this handy dew shield.
	saxon Optical Lens Cleaning Kit Keep your telescope in top shape by protecting it from dust and debris!

 

About Celestron

Imagine a humble beginning – a 6-inch reflector telescope crafted by Tom Johnson for his young son. This was the spark that ignited a transformative journey. As time passed, his designs evolved into larger, more sophisticated scopes. Today, Celestron shines as an industry trailblazer, renowned for crafting precision optical equipment. From computerised marvels to traditional telescopes, binoculars, spotting scopes and more, Celestron's portfolio is a universe of possibilities. With a legacy spanning over 50 illustrious years, Celestron has earned admiration from both avid hobbyists and dedicated astronomers worldwide. But they don't rest on their laurels; innovation propels them forward. They constantly broaden their product horizons while illuminating minds through global science education initiatives. Celestron's story is one of innovation, evolution and a passion for the cosmos. Join them on this extraordinary journey of discovery and inspiration.

Product Code: 12055