CGX EQUATORIAL 925 EDGEHD TELESCOPE - SKU# 12056

by Celestron
Save 39%
$6,849.95
$4,199.00
  • 9.25" HD Optical Tube Assembly
  • CGX EQ Mount and Tripod
  • Celestron’s premium StarBright XLT coatings provide maximum light transmission
  • A 9x50 finderscope, 2” mirror diagonal for more comfortable viewing, and wide-angle 23mm Luminos 2" eyepiece are all included

    CGX 925 HD combines Celestron's all-new state of the art CGX computerized equatorial mount with its acclaimed EdgeHD optical system. With over 9 inches of aperture and our premium StarBright XLT coatings, the CGX 925 HD gives you over 1000 times the light gathering power than the unaided eye. Designed to give diffraction limited performance and offer more resolution than the 800 with less weight than the 1100, the CGX 925 HD is a premier astroimaging telescope made for remote operation.

    See the Universe in HD

    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 more than just off-axis star coma; it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view.

    True Astrograph Quality
    Many optical designs that advertise themselves as "astrographs" actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for some visual observing, stars will appear out of focus at the edge when used with the flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today. Learn more about EdgeHD technology.

    Improved Performance
    Superior edge performance not only creates rounder, more pleasing stars, but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestron’s StarBright XLT optical coatings on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum.

    Mechanical Features
    In addition to EdgeHD’s optimized optical design, the telescope tube has been redesigned to make sure you get the most from your optics each and every night.

    • 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. 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.

    Individually Tested
    Every EdgeHD that ships has been tested not only for the surface quality of each optical component, but also with a camera and artificial star to ensure the imaging system meets our rigid quality assurance. This “final acceptance test” confirms the EdgeHD will perform in the field and deliver high-quality astroimages.

    CGX Mount

    Celestron’s workhorse CGEM mount lineup has been the German Equatorial backbone for telescopes ranging from 6 to 11 inches of aperture. Since that time, many more astro-imagers and planetarium controlled setups have emerged as backyard telescope technology has evolved. Celestron’s engineering team applied their years of experience designing German Equatorial mounts to the all-new CGX EQ, a culmination of all the advancements made to our technologies, value, and ease-of-use.

    The new CGX was designed to better support your telescope for both visual and astro-imaging pursuits. Key design goals included a lower profile EQ head, which provides a more compact and therefore more stable setup; a better drive system; remote operation-friendly with home and limit optical sensors; easier polar alignment adjustments; and better cable management. In addition to that, we’ve made mechanical and ergonomic improvements throughout to make the mount sturdier, easier to use, and transport. The CGX is our new Equatorial backbone to support a wide range of telescopes.

     

    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 & 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, 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.

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