Celestron CGX Equatorial 1100 HD11" f/10 GoTo Telescope

Celestron CGX Equatorial 1100 HD11" f/10 GoTo Telescope

Celestron CGX Equatorial 1100 HD11" f/10 GoTo Telescope

B&H # CECGX1100HDT MFR # 12057
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Product Highlights

  • 11" Aplanatic Schmidt-Cassegrain
  • 2800mm Focal Length, f/10 Focal Ratio
  • 23mm Eyepiece, 90° Star Diagonal
  • Motorized EQ Mount, 55-lb Payload
  • NexStar+ Computer Hand Controller
  • 40,000-Object Database
  • Guided Tours and Custom Object Filters
  • Backlash Compensation and PPEC
  • 9x50 Finderscope
  • 2" Stainless Steel Tripod
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Celestron CGX 1100 overview

  • 1Description

Celestron put together the CGX Equatorial 1100 HD11" f/10 GoTo Telescope to provide a complete observational platform that includes a large-aperture OTA, the NexStar+ computer hand controller, a motorized equatorial mount, and an array of accessories to get you set up and observing the Moon, planets, and especially deep-sky subjects like nebulae, galaxies, and star clusters.

  • EdgeHD 11" f/10 Aplanatic Schmidt-Cassegrain Telescope (OTA Only)

    Engineered to deliver sharp and clear distortion-free views, the Celestron EdgeHD 11" f/10 Aplanatic Schmidt-Cassegrain Telescope is an ideal choice for observation, astrophotography, and imaging objects within or beyond our solar system. It features an aplanatic Schmidt-Cassegrain optical system consisting of a corrector plate, a spherical primary mirror, and a secondary mirror along with a set of field-flattening lenses integrated into the baffle tube. Complementing the EdgeHD system is the proprietary StarBright XLT optical coating system, which improves light transmission and reflectivity across the entire visual spectrum. The combination of EdgeHD and StarBright XLT produces bright and clear high-resolution images with true color rendition across the entire field of view without distortion, aberrations, or off-axis comas.

    Optimized for imaging, the internal focusing system features mirror support clutches to ensure proper alignment and mirror locks to avoid accidental defocusing during long-exposure astrophotography. The optical tube is outfitted with an oversized 2" visual back to ensure large imaging sensors are completely covered to avoid vignetting. For visual observations, a 2" star diagonal is included along with a 23mm wide-angle eyepiece that yields a respectable 122x power. A reducer adapter is provided to allow the use of smaller and more common 1.25" eyepieces and accessories. The EdgeHD 11 is offered here without a mount or tripod for users who already have a reliable support system and are looking to upgrade or add to their existing gear, but comes with a large CGE dovetail plate that is compatible with Losmandy saddles.

    Optical Tube
    • 11" (280mm) aperture
    • f/10 focal ratio
    • 2800mm effective focal length
    • Aplanatic Schmidt-Cassegrain optical design
    • EdgeHD field-flattener aplanatic design eliminates spherical aberration, field curvature, and off-axis star coma to improve resolution, sharpness, and clarity across the entire field of view - especially at the edges
    • Diffraction-limited SCHOTT glass reduces internal light loss to improve color, clarity, and sharpness
    • StarBright XLT optical coatings
    • Flexible tension clutches hold the primary mirror in place to reduce image shift without putting any force or pressure on the mirror assembly, keeping subjects centered
    • Internal mirror locks prevent accidental adjustment to focus - important during long-exposure astrophotography
    • Integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror without dust getting in, to prevent mirror distortion due to uneven surface temperatures
    • Resolution: 0.5 arcsec (Rayleigh); 0.42 arcsec (Dawes)
    • Secondary mirror obstruction: 3.75" (95 mm); 34% by diameter; 12% by area
    StarBright XLT System
    • Maximizes light transmission through optical path
    • Improves color rendition, contrast, sharpness, resolution, and brightness
    • Broadband system provides flat wavelength transmission across the entire visual spectrum
    • Multi-layer mirror coatings with layers of aluminum, SiO2 (quartz), and TiO2 (titanium dioxide)
    • Multi-layer anti-reflective corrector plate coatings with layers of MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide). Hafnium has a wider band-pass than the commonly used titanium
    • High-transmission water white glass corrector plate limits light loss due to internal absorption
    • OTA only; mount and tripod required for proper use
    • Large CGE (Losmandy-style) dovetail plate
    Included Accessories
    Visual Back:

    • Standard SCT threads
    • 2" eyepiece/accessory holder
    • Use for prime focus or projection astrophotography with optional adapters


    • Luminos-series wide-angle
    • 82° field of view
    • 2" diameter barrel
    • Accepts most 2" eyepiece filters
    • 23mm focal length yields 122x power
    • Parfocal with all Luminos eyepieces, allowing it to be changed out with other Luminos eyepieces without having to adjust the focus
    • Retractable eyecup for use with or without eyewear

    Reducer adapter:

    • 2"-to-1.25" reducer adapter allows the use of smaller eyepieces and accessories in visual back or diagonal


    • 90° angle puts head in comfortable viewing position
    • Threaded for direct connection to OTA without the need for the visual back
    • 2" eyepiece/accessory holder
    • Star diagonal corrects image horizontally, but not vertically


    • Low 9x magnification preserves wide field of view to more easily find alignment or guide stars
    • Large 50mm aperture helps to see dimmer objects and stars for easier star-hopping navigation
    UPC: 050234105095
  • CGX GoTo EQ Mount with Tripod

    Celestron's CGX GoTo EQ Mount with Tripod improves on their venerable CGEM platform to provide users with a heavy-duty research-quality mount for larger OTAs, accessories, and imaging rigs. Engineered to carry a 55-pound payload, and outfitted with high-torque motors with a heavy-duty belt drive system to improve tracking stability and reduce backlash, it is able to smoothly and accurately track near and deep-sky objects for long periods of time. Its Vixen/Losmandy dual dovetail saddle makes the mount compatible with most plates in-use today. To provide a stable platform for the mount and your OTA, a heavy-duty stainless steel tripod is included that sports large 2" diameter legs, an accessory tray that doubles as a stabilizer, and an adjustment range from 47.25 to 77.5" including the head.

    The brains of the CGX EQ is the NexStar+ computer controller. Equipped with a database of 40,000 objects, including the planets, stars, nebulae, galaxies, and the complete Messier catalog, it can also be programmed with up to 100 custom user-defined objects and filters for custom object lists. Its intuitive menu-driven user interface allows you to observe the heavens with nine slew speeds and three tracking rates, plus anti-backlash compensation and Permanent Periodic Error Correction (PPEC) for smoother movements in the motors, and improved tracking over time. Features, such as guided tours, extended information on 200 popular objects, and multiple alignment options make the NexStar+ controller easy to use and invaluable to new users and experienced star-gazers.

    • German equatorial mount
    • 55 lb payload capacity
    • 3-65° latitude adjustment range
    • 20° of additional tracking past the meridian provides greater usability
    • Dual-axis servo motors with optical encoders for smooth tracking and quiet operation
    • High-torque motors provide smooth tracking and slewing for heavy OTAs
    • Internal belt-drive system provides smooth, vibration-free tracking while minimizing backlash
    • Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and improve gear meshing
    • Limit sensors automatically shut off slewing or tracking before reaching the hard stop fail safe
    • Internal hard stops for both axes prevents cable tension and tripod strike
    • Autoguider port for making corrections while astroimaging
    • Dual Vixen/Losmandy dovetail saddle, compatible with CG-5 and CGE bars
    • Long clutch levers make tightening and loosening of clutches easier for manual movement
    • Internal "Real Time Clock" keeps time and site information saved when power is turned off
    • Internal cables/wires for snag-free operation
    • Runs on included 12 VDC, 4A car/vehicle power supply
    NexStar+ Hand Controller
    • Intuitive menu-driven user interface
    • Nine slew speeds: 2x, 4x, 8x, 16x, 32x, 0.3°/sec, 1.0°/sec, 2°/sec, 4°/sec
    • Three tracking rates: Sidereal, Lunar, and Solar
    • Anti-backlash correction: Train-out intrinsic play in gears for smoother movement and tracking
    • Permanent Periodic Error Correction (PPEC): Improves tracking precision for long-exposure astrophotography and imaging
    • 40,000-object database
    • 400 user-defined objects for customization
    • Filters for creating custom object lists
    • Solar System: All 7 planets plus the Moon, Sun, and Pluto
    • Custom lists of all the brightest stars, double stars, variable stars, and asterisms
    • Custom lists of all the best galaxies, nebulae, and clusters, as well as the complete Messier catalog, and select NGC objects
    • Alignment options: One or two-star, Solar system, Quick, and Last
    • Sky Tour: Based on location, date, and time, the system shows the best objects in the sky and automatically slews to them
    • Object info: Provides useful information about the selected object such as magnitude and constellation. Includes extended information about 200 popular objects
      Physical characteristics:
    • 2-line, 18-character LCD window with red back-lighting for comfortable viewing without affecting night-adjusted vision
    • 19 function keys, back-lit in red
    • Mini-USB port: Connect to a computer, for use with software programs for point-and-click slewing capability, and updating firmware via PC
    • Stainless steel legs
    • Adjustable-height 47.25-77.5", including head
    • Heavy-duty 2" diameter
    • Wide leg stance provides greater stability, especially on uneven ground
    • Accessory/eyepiece holder tray that doubles as a leg spreader/lock
    • Weight: 19.2 pounds
    UPC: 050234915304
  • 11 lb Counterweight for Advanced VX

    The 11 lb Counterweight for Advanced VX from Celestron helps to counterbalance the mass of a Schmidt-Cassegrain optical tube mounted to the Advanced VX equatorial mount. This telescope accessory is useful for off-setting the additional weight of imaging accessories like a camera or tele-converter.

    UPC: 050234942867
In the Box
Bundle Items
  • Luminos 23mm Eyepiece (2")
  • 9x50 Finderscope
  • 2" 90° Star Diagonal
  • 1.25" Eyepiece Reducer Adapter
  • Limited 2-Year Warranty
  • NexStar+ Hand Control (EQ)
    2 x
  • 11 lb Counterweight for Advanced VX
  • Stainless Steel Tripod
  • Counterweight Shaft
  • 12 VDC Car/Vehicle Power Adapter
  • Limited 2-Year Warranty
  • Two Year Limited Warranty
Table of Contents
  • 1Description
  • EdgeHD 11" f/10 Aplanatic Schmidt-Cassegrain Telescope (OTA Only)
    Optical Design Aplanatic Schmidt-Cassegrain
    Aperture 11.0" / 279.4mm
    Focal Length 2800 mm
    Focal Ratio f/10
    Eyepiece Barrel Diameter 2.0"
    1.25" with included reducer
    Diagonal 90° star
    2" snout and eyepiece holder
    Finderscope 9 x 50
    Tripod None
    Mount Type CGE dovetail plate
    Compatible with Losmandy-style saddles
    Power Source None
    Optical Tube Length 24.0" / 61.0 cm
    Weight 28.0 lb / 12.7 kg
    Packaging Info
    Box Dimensions (LxWxH) 30.0 x 19.0 x 18.0"
  • CGX GoTo EQ Mount with Tripod
    Mount Type Equatorial
    Load Capacity 55.0 lb / 24.9 kg
    Motor Dual-axis servo with heavy-duty belt-drive system
    GO-TO Capability Yes, NexStar+ hand controller
    Latitude Adjustment Range 3 - 65°
    Polar Axis Scope None
    Tripod Adjustable height from 47.25 - 77.5" / 120 - 197 cm, including head
    Stainless steel
    2" diameter legs
    Power Source 12 VDC, 4 A
    Weight Mount head: 44.0 lb / 20.0 kg
    Tripod: 19.2 lb / 8.7 kg
    Packaging Infodcdsudrt
    Box Dimensions (LxWxH) 46.5 x 13.8 x 13.0"
  • 11 lb Counterweight for Advanced VX
    Packaging Info
    Box Dimensions (LxWxH) 11.1 x 9.7 x 4.4"

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