C8-A XLT (CG-5) Optical Tube Assembly

0.00 excl. 18% GST

  • 8″ Schmidt-Cassegrain Optical Tube Assembly (OTA)
  • Features Celestron’s premium patented StarBright XLT Optical coatings
  • 2032 mm focal length (f/10)
  • Fastar compatible
  • Tube constructed of durable and lightweight aluminum
  • Includes: 25mm eyepiece (81x), 6×30 Optical finderscope, star diagonal, 1.25” visual back, CG-5 dovetail bar

Available on backorder

Optical Tube INFO:
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 6×30
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 CG-5 Dovetail bar

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