Celestron CGEM II 800 EdgeHD 8" f/10 Schmidt-Cassegrain GoTo Telescope

BH #CECGEMII800 • MFR #12017
Celestron CGEM II 800 EdgeHD 8" f/10 Schmidt-Cassegrain GoTo Telescope
Key Features
  • 8" Aplanatic Schmidt-Cassegrain OTA
  • 2032mm Focal Length, f/10 Focal Ratio
  • StarBright XLT Optical Coating System
  • 1.25" Diagonal and 40mm Eyepiece
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Celestron provides a complete astronomical observation platform, including their updated mount, with the CGEM II 800 EdgeHD 8" f/10 Schmidt-Cassegrain GoTo Telescope. This rig comes with everything you need to start making detailed observations of the Moon, planets, and deep-sky objects such as galaxies, nebulae, clusters, and stars. It comes with an 8" aperture Schmidt-Cassegrain optical tube assembly, the NexStar+ computer controller, the CGEM II motorized EQ mount, a 1.25" 40mm eyepiece that produces 51x, a 1.25" 90° diagonal, and a heavy-duty stainless steel tripod.
Back-Ordered
$2,649.00
Call For Promotion: 800-606-6969
12 Mos. Promo Financing*

Celestron CGEM II 800 Overview

  • 1Description
  • 2Optical Tube
  • 3StarBright XLT System
  • 4Mounting
  • 5Included Accessories

Celestron provides a complete astronomical observation platform, including their updated mount, with the CGEM II 800 EdgeHD 8" f/10 Schmidt-Cassegrain GoTo Telescope. This rig comes with everything you need to start making detailed observations of the Moon, planets, and deep-sky objects such as galaxies, nebulae, clusters, and stars. It comes with an 8" aperture Schmidt-Cassegrain optical tube assembly, the NexStar+ computer controller, the CGEM II motorized EQ mount, a 1.25" 40mm eyepiece that produces 51x, a 1.25" 90° diagonal, and a heavy-duty stainless steel tripod.

Optical Tube

  • 8" (203.2mm) aperture
  • f/10 focal ratio
  • 2032mm 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 focusimportant 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: 0.69 arcsec (Rayleigh); 0.57 arcsec (Dawes)
  • Secondary mirror obstruction: 2.7" (69mm); 34% by diameter; 11% 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

Mounting

  • OTA only; mount and tripod required for proper use
  • Large CGE (Losmandy-style) dovetail plate

Included Accessories

Visual Back:

  • Standard Schmidt-Cassegrain telescope (SCT) threads
  • 1.25" eyepiece/accessory holder
  • Use for prime focus or projection astrophotography with optional adapters

Eyepiece:

  • Plössl lens configuration
  • 1.25"-diameter barrel
  • Accepts most 1.25" eyepiece filters
  • 40mm focal length yields 51x power

Diagonal:

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

Finderscope:

  • 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: 050234103091

Celestron CGEM II 800 Specs

Optical DesignAplanatic Schmidt-Cassegrain
Aperture8.0" / 203.2mm
Focal Length2032mm
Focal Ratiof/10
Eyepiece Barrel Diameter1.25"
Diagonal90° star
1.25" snout and eyepiece holder
Finderscope9x50
TripodNone
Mount TypeCGE dovetail plate
Compatible with Losmandy-style saddles
Power SourceNone
Optical Tube Length17.0" / 43.2 cm
Weight14.0 lb / 6.4 kg
Packaging Info
Package Weight25 lb
Box Dimensions (LxWxH)26 x 16 x 14"
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