Explore the heavens with the Celestron CGX Equatorial 925 HD Telescope, a state-of-the-art astronomical instrument. This telescope boasts a 9.25" HD Optical Tube Assembly, perfectly complemented by the advanced CGX EQ Mount and Tripod. Enhanced with Celestron’s renowned StarBright XLT coatings, it ensures maximum light transmission for crystal-clear celestial views.

This package includes a 9x50 finderscope for easy and precise object location, a 2” mirror diagonal for comfortable viewing, and a wide-angle 23mm Luminos 2" eyepiece. The CGX 925 HD is an exceptional combination of Celestron's cutting-edge CGX computerized equatorial mount and its acclaimed EdgeHD optical system. With over 9 inches of aperture coated with StarBright XLT, this telescope offers more than 1000 times the light-gathering power of the unaided eye, making it a superior choice for both hobbyists and serious astroimagers.

Experience the Universe in HD with the EdgeHD system, an aplanatic, flat field Schmidt-Cassegrain telescope that delivers aberration-free images across a broad visual and photographic field. The optical design is tailored to reduce not only off-axis star coma but also to provide an astrograph-quality flat focal plane right to the edge of the field of view.

EdgeHD optics are designed to produce a focal plane three times flatter than a standard Schmidt-Cassegrain telescope and significantly flatter than other coma-free designs, ensuring visibly sharp stars across large CCD chips. These optics also improve resolution and limiting magnitude compared to telescopes of equal aperture, thanks to Celestron’s StarBright XLT optical coatings on every surface.

The mechanical features of this telescope are as impressive as its optics. The tube features mirror clutches with flexible tension to hold the mirror in place and reduce image shift during long exposure astro-imaging. Tube vents with integrated 50-mesh filters efficiently release hot air from behind the primary mirror, preventing dust entry. The EdgeHD tubes' Fastar versatility allows for rapid wide-field imaging at f/2.

Each EdgeHD telescope undergoes rigorous testing for surface quality and with a camera and artificial star, ensuring it meets Celestron's strict quality assurance standards. This guarantees top performance in the field and high-quality astroimages.

The CGX mount, an integral part of Celestron’s CGEM series, has been the foundation for German Equatorial telescopes ranging from 6 to 11 inches of aperture. It's designed to enhance both visual and astro-imaging experiences, featuring a lower profile EQ head for a more stable setup, a superior drive system, home and limit optical sensors for remote operation, and improved cable management. Mechanical and ergonomic improvements throughout the mount make it sturdier, easier to use, and transport, solidifying the CGX as a versatile backbone for a wide range of telescopes.

Specifications

OPTICAL TUBE INFO:
Optical Design:	EdgeHD
Aperture:	235mm (9.25")
Focal Length:	2350mm (93")
Focal Ratio:	f/10
Focal Length of Eyepiece 1:	23mm (0.91")
Magnification of Eyepiece 1:	102x
Finderscope:	9x50
Star Diagonal:	2" with 1.25" adapter
Optical Tube:	Aluminum
Highest Useful Magnification:	555x
Lowest Useful Magnification:	34x
Limiting Stellar Magnitude:	14.4
Resolution (Rayleigh):	0.59 arc seconds
Resolution (Dawes):	0.49 arc seconds
Light Gathering Power (Compared to human eye):	1127x
Secondary Mirror Obstruction:	85mm (3.35")
Secondary Mirror Obstruction by Diameter:	36%
Secondary Mirror Obstruction by Area:	13%
Optical Coatings:	StarBright XLT
Optical Tube Length:	559mm (22")
Optical Tube Diameter:	271.78mm (10.7")
Optical Tube Weight:	21 lbs (9.53 kg)
Dovetail:	CGE Dovetail Bar
MOUNT INFO:
Mount Type:	Computerized Equatorial
Instrument load capacity:	55 lbs (25 kg)
Height adjustment range (includes mount and tripod):	1200.15mm - 1968.5mm (47.25" - 77.5")
Tripod Leg Diameter:	50.8mm (2") Steel tripod with graduated markings on lower section
Latitude adjustment range:	3° - 65°
Mount Head Weight:	44 lbs (20 kg)
Accessory Tray:	Yes
Tripod Weight:	19.2 lbs (8.7 kg)
Weight of Counterweights:	2 x 11 lbs
Slew Speeds:	9 slew speeds - max speed 4°/second
Tracking Rates:	Sidereal, Solar and Lunar
Tracking Modes:	EQ North and EQ South
GPS:	N/A
Dovetail Compatibility:	Dual saddle plates (CG-5 and CGE saddle)
Number of Auxiliary Ports:	2 AUX Ports (Hand Control can use either AUX Port)
Autoguide Port:	Yes
USB Port:	Yes, input for Mount and Hand Control
Power Requirements:	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
Computerized Hand Control:	2 line x 18 character backlit Liquid Crystal Display, 19 LED backlit buttons, USB 2.0 Port for PC connection
NexStar+ Database:	40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Software:	CPWI Telescope Control Software, Celestron Starry Night Special Edition Software, and SkyPortal App
Total Kit Weight:	106.2 lbs (48.17 kg)
Included Items:	CGX Equatorial Head CGX Tripod Accessory Tray 2 x 11 lbs counterweights NexStar+ Hand Control 8mm Allen Wrench 12V DC Power Cable Hand Control Holster
Solar Warning	Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result. Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it. Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.
California Residents	WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Software and Documentation

MANUALS:
CGX Mount Manual
EdgeHD Optics Manual
Whitepaper EdgeHD Optics
NexStar Plus Hand Control Manual
SOFTWARE & FIRMWARE:
CPWI Software
Celestron Firmware Manager (CFM) Software
Periodic Error Correction Tool (PECTool)
DRAWINGS:
CGX 925 SCT & EdgeHD Dimensional Drawing
OTHER PRODUCT FILES:
Adapter to Pier Info Guide
SCT & EdgeHD Collimation Guide
How to Align a Red Dot Finder to Your Telescope Video
Solar Safety Warning
What are the Sizes of Collimation Screws
Celestron NexStar+ Hand Control Troubleshooting Guide

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Celestron CGX 925 EdgeHD

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