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Celestron CGEM 800 Computerized Cassegrain Telescope

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  • CGEM Computerized Equatorial Mount
  • 2" steel tripod with Accessory Tray
  • NexStar computer control technology
  • Flash upgradeable hand control software and motor control units for downloading product updates
  • Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures, and user-defined slew limits
  • Steel worm gear and 90mm pitch diameter brass worm wheel
  • Drive Motors - Low Cog DC Servo motor with motor armatures that are skewed to minimize cogging which is required fro low speed tracking.
  • Designated six-pin RJ-12 modular jack, ST-4 compatible guide port
  • Double line, 16-character Liquid Crystal Display Hand Control with backlit LED buttons
  • Autoguide port and auxiliary ports located on the electronic pier
  • RS-232 communication port on hand control
  • GPS-compatible with optional CN16 GPS Accessory
  • SKU: CEL-11097
    You will earn 3495 OZHut Points for buying this product
    Stock Status: IN STOCK
    Ships Out Next Business Day
    An 'In Stock' status means that an item is available in our warehouse and ready to be shipped out the next business day.

    The product is not stocked with us in the warehouse, but available for order from our suppliers. For these items, there is a short lead time before it gets sent out to you.

    This product is currently neither stocked in our warehouse nor with our supplier. However, it is still available to be purchased and will be sent out to you once the item is back in stock on the specified date.

    The number of days before your purchase leaves the warehouse.

    Regular Price: $3,799.00

    Sale Price $3,499.00

    Retail Price $3,950.00


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    Celestron CGEM 800 Computerized Cassegrain Telescope

    TheCelestron CGEM 800 Computerized Telescope features a high-end 8" Schmidt Cassegrain OTA with the famous XLT coatings mounted on our brand new CGEM™ mount.

    Ergonomic CGEM MountDesign
    The CGEM™ mount is not just a pretty face with its new and bold appearance. It is fully capable of carrying Celestron’s higher-end SCT optical tubes securely and vibration free. This makes it perfect for both imaging and visual observing purposes. CGEM was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provides a clean look and an easy and trouble free set up.

    Ingenius Innovation
    The CGEM series aim to make things easier with the All-Star Polar Alignment procedure which allows you to choose any bright star in the sky, while the software calculates and assists with polar alignment. Another reason why the CGEM is great for astrophotography is the Permanent Periodic Error Correction (PPEC).This feature is meant to train out the worm gears periodic errors, while allowing for the mount to maintain the PPEC recordings.

    Great Performance
    For objects near the Meridian (which is imaginary line passing from North to South), the CGEM will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky.


    Additional Info

    Optical Design 8" Schmidt-Cassegrain
    Aperture 203.2 mm (8 in)
    Focal Length 2032 mm (80 in)
    Focal Ratio
    Finderscope 6x30
    Mount Computerized Equatorial
    Optical Tube Aluminium
    Optical Coatings Starbright XLT Coating
    Eyepiece 1 25 mm (0.98 in)
    Magnification 1 81 x
    Star Diagonal 1.25
    Tripod Adjustable, Stainless Steel
    CD ROM NexRemote control software with RS232 cable
    Power Supply Car battery Adaptor
    Highest Useful Magnification 480 x
    Lowest Useful Magnification 29 x
    Limiting Stellar Magnitude 14
    Eyepiece 1 Field of View 0.62 °
    Light Gathering Power 843 x
    Angular Field of View 0.62 °
    Secondary Mirror Obstruction 2.7 in (68.58 mm)
    Secondary Mirror Obstruction by Area 11.4 %
    Secondary Mirror Obstruction by Diameter 33.8 %
    Resolution (Rayleigh) 0.69 arcsec
    Resolution (Dawes) 0.57 arcsec
    Gear Steel worm gear and 90mm pitch diameter brass worm wheel
    Motor Drive Low cog DC Servo motors with encoders, both axes
    Computer Hand Control Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons
    Slew Speeds Nine slew speeds: 5 �/sec, 2 �/sec, 1 �/sec, 64x, 16x, 8x, 4x, 1x, .5x
    Tracking Rates Sidereal, Solar and Lunar
    Tracking Modes EQ North and EQ South
    Alignment Procedures
    2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align
    Software Precision
    24bit, 0.08 calculation
    40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
    Power Requirements
    12 VDC 1.5 Amp
    Optional CN16 Accessory
    1 x 17 lb
    Optical Tube Length
    17 in (431.8 mm)
    Telescope Weight
    88 lb (39.92 kg)
    User Level For Advanced
    Telescope Type Schmidt-Cassegrain
    Aperture Size 203mm
    Focal Length 2032mm
    Focal Ratio f/10
    Highest Practical Magnification 480x
    Finderscope 6x30
    Eyepieces 25mm
    Mount Type Computerized Mount
    Tripod Steel
    Warranty 2 Years Limited Warranty



    Celestron Limited Warranty

    Celestron warrants its products to be free from defects in materials and workmanship for the length of time specified by this product to the original owner. Each product will list the warranty for it on our website.

    Celestron will repair or replace the product which, upon inspection by Celestron, is found to be defective in materials or workmanship and within the definitions of the limits described below.

    This warranty is effective January 1, 2012, and supersedes all other warranties as noted in brochures, instruction manuals, product packaging, etc.

    This warranty does not cover products that have been subject to abuse, misuse, physically damaged, altered, or had unauthorized repairs or modifications. This warranty does not cover defects due to normal wear and tear and other conditions.

    Celestron shall use reasonable efforts to repair or replace any binocular or spotting scope covered by this warranty within thirty calendar days of receipt. If it takes longer, the customer will be notified.

    If warranty problems arise, or if you need assistance in using your product, please contact our Customer Service.


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