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Celestron

C8-A XLT Optical Tube Assembly


  • 1,04995

This item is out of stock but you can place an order now and we’ll ship when it becomes available.


Overview

  • 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
  • 6x30 finderscope to help accurately find objects
  • Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
  • Includes choice of D-Style dovetail rail compatible with CGE mount, or V-Style dovetail rail compatible with CG-5 Advanced Series mount

Description

  • 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
  • 6x30 finderscope to help accurately find objects
  • Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
  • Includes choice of D-Style dovetail rail compatible with CGE mounts, or V-Style dovetail rail compatible with CG-5 Advanced Series mounts.

Specifications

Optical Design Schmidt-Cassegrain
Aperture (mm) 203.2 mm (8")
Focal Length 2032 mm (80")
Focal Ratio 10
Focal Length of Eyepiece 1 (mm) 25 mm (0.98")
Magnification of Eyepiece 1 81x
Finderscope 6x30
Star Diagonal 1.25
Optical Tube Aluminum
Highest Useful Magnification 480x
Lowest Useful Magnification 29x
Limiting Stellar Magnitude 14
Resolution (Rayleigh) 0.69 arc seconds
Resolution (Dawes) 0.57 arc seconds
Light Gathering Power (Compared to human eye) 843x
Secondary Mirror Obstruction 64 mm (2.5")
Secondary Mirror Obstruction by Diameter 31%
Secondary Mirror Obstruction by Area 9.77%
Optical Coatings StarBright XLT
Optical Tube Length 432 mm (17")
Optical Tube Weight 12.5 lbs (5.67 kg)
Dovetail Compatibility CG-5 Mount

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