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Celestron C8 8in Optical Tube Assembly CG-5

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Celestron C8 8in Optical Tube Assembly CG-5
AUD $1,599.00

Availability: In Stock

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Details

  • 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 dovetail rail compatible with CG-5 Advanced Series mount

Additional Information

Specifications
Optical Design Schmidt-Cassegrain
Aperture 203.2mm (8")
Focal Length 2032mm (80")
Focal Ratio f/10
Focal Length of Eyepiece 1 25mm (0.98")
Magnification of Eyepiece 1 81x
Finderscope 6x30
Star Diagonal 1.25" Star Diagonal
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 64mm (2.5")
Secondary Mirror Obstruction by Diameter 31%
Secondary Mirror Obstruction by Area 9.77%
Optical Coatings StarBright XLT
Optical Tube Length 432mm (17")
Optical Tube Diameter 238mm (9.37")
Optical Tube Weight 12.5 lbs (5.67 kg)
Dovetail Vixen/CG-5 Dovetail bar

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