Celestron CGX 1100 SCT Telescope


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SKU: 12052

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    Celestron CGX 1100 SCT Telescope

    The Celestron CGX 1100 Schmidt-Cassegrain Telescope features Celestron’s premium StarBright XLT coated optics and the state of the art CGX computerized equatorial mount. With the optical tube assembly of the CGX 1100 weighing only 27.5 lb., this telescope is still portable enough to be taken to dark skies, and it has 89% more light gathering power than an 8″ telescope and more than 40% more than the 9.25″.

    The 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 Equatorial backbone to support a wide range of telescopes.

    Celestron CGX 1100 Schmidt Cassegrain

    General Features

    • 11″ Schmidt-Cassegrain Optical Tube Assembly
    • Aluminum Optical Tube
    • Celestron’s premium StarBright XLT coatings
    • 2800 mm focal length (f/10)
    • 40 mm eyepiece included (70x)
    • Visual back allows for use with 1.25″ accessories 9×50 finderscope to help accurately find objects
    • Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
    • Includes dovetail rail compatible with CGE mount

    Computerized Mount Features

    • ASturdier and more rigid with quicker dampening time
    • Increased load capacity to 55 lbs.
    • 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
    • Control software developed in conjunction with PlaneWave Instruments 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 3º-65º 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” can hold three 1.25″ eyepieces, two 2″ eyepieces, your smartphone, or other accessories
    • +20º of additional tracking past the meridian on either side
    • Tripod legs can be collapsed with accessory tray installed for faster setup and transport

    Improved ergonomics:

    • Two handles for easy pickup and transport
    • Ergonomically designed dovetail clamping knobs
    • Innovative and improved polar alignment adjustment system
    • Ergonomic latitude adjuster for smooth and easy adjustment under full loads
    • Optional add-on polar axis finderscope – coming soon


    • 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)

    Celestron CGX 1100 Specifications

    Optical Tube Info:
    Optical Design Schmidt-Cassegrain
    Aperture (mm) 279.4 mm (11 in)
    Focal Length 2800 mm (110 in)
    Focal Ratio 10
    Focal Length of Eyepiece 1 (mm) 40 mm (1.57 in)
    Magnification of Eyepiece 1 70x
    Finderscope 9×50
    Star Diagonal 1.25
    Optical Tube Aluminium
    Highest Useful Magnification 660x
    Lowest Useful Magnification 40x
    Limiting Stellar Magnitude 14.7
    Resolution (Rayleigh) 0.5 arc seconds
    Resolution (Dawes) 0.42 arc seconds
    Light Gathering Power (Compared to human eye) 1593x
    Secondary Mirror Obstruction 3.75 in (95 mm)
    Secondary Mirror Obstruction by Diameter 34%
    Secondary Mirror Obstruction by Diameter 12%
    Optical Coatings StarBright XLT
    Optical Tube Length 24 in (610 mm)
    Optical Tube Weight 27.5lbs (12 kg)
    Dovetail Compatibility CGE Mount
    Mount Info:
    Mount German Equatorial Mount
    Instrument load capacity 55lbs
    Tripod height adjustment range 47.25” to 77.5” including EQ head
    Tripod leg diameter 2″
    Latitude adjustment range 3º-65º
    Tripod Weight 19.2lbs
    EQ Head Weight 44lbs
    Max Slew Speed 5º/second (4º/second is default)
    Tracking Rates Sidereal, Solar and Lunar
    Number of Auxiliary ports (for hand control and accessories) 2
    Autoguide Port Yes
    USB Port Yes
    Software Telescope control PC software
    Included Items
    CGX Equatorial Head
    CGX Tripod
    Accessory Tray
    3 x11 lbs counterweights
    NexStar+ Hand Control
    DC Power Cable (plugs into cigarette lighter socket)

    CGX Mount Instruction Manual

    Have a question about this product?

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