Celestron OTA

Celestron C8-A XLT (CGE) Optical Tube Assembly (OTA)

  • 8″ Schmidt-Cassegrain Optical Tube Assembly
  • Aluminum Optical Tube
  • Celestron’s premium StarBright XLT coatings
  • 2032 mm focal length (f/10)
  • 25 mm eyepiece included (81x)
  • Visual back allows for use with 1.25″ accessories
  • 6×30 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
SKU: C/91024-XLT Categories: , ,

Description

Striking a comfortable balance between power and portability, the Celestron C8-A XLT CGE 8″ f/10 Schmidt-Cassegrain Telescope is an ideal choice for observing objects within or beyond our solar system. It features a Schmidt-Cassegrain optical system consisting of a corrector plate, a spherical primary mirror, and a secondary mirror that work together to reduce spherical and chromatic aberrations.

The optical tube is outfitted with a standard 1.25″ visual back to make it easier to find eyepieces, accessories, and imaging gear. For visual observations, a 1.25″ star diagonal is included along with a 25mm eyepiece that yields 81x magnification. The Celestron C8-A XLT 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 larger CGE dovetail plate that is compatible with Losmandy-style saddles.

General Features

  • 8″ Schmidt-Cassegrain Optical Tube Assembly
  • Aluminum Optical Tube
  • Celestron’s premium StarBright XLT coatings
  • 2032 mm focal length (f/10)
  • 25 mm eyepiece included (81x)
  • Visual back allows for use with 1.25″ accessories
  • 6×30 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

Specifications

  • Aperture (mm):203.2 mm (8 in)
  • Dovetail Compatibility: CGE Mount
  • Finderscope: 6×30
  • Focal Length: 2032 mm (80 in)
  • Focal Length of Eyepiece 1: 25 mm (0.98 in)
  • Focal Ratio: 10
  • Highest Useful Magnification: 480 x
  • Light Gathering Power: 843 x
  • Limiting Stellar Magnitude: 14
  • Lowest Useful Magnification: 29 x
  • Magnification of Eyepiece 1: 81 x
  • Optical Coatings: StarBright XLT
  • Optical Design: Schmidt-Cassegrain
  • Optical Tube: Aluminum
  • Optical Tube Length: 17 in (432 mm)
  • Optical Tube Weight: 12.5 lbs (5.67 kg)
  • Resolution (Dawes): 0.57 arc seconds
  • Resolution (Rayleigh): 0.69 arc seconds
  • Secondary Mirror Obstruction: 9.77%
  • Secondary Mirror Obstruction: 2.5 in (64 mm)
  • Star Diagonal: 1.25