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Celestron C6 XLT Optical Tube Assembly

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SKU 91010XLT

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  • Celestron 6" Schmidt-Cassegrain Optical Tube Assembly
  • Aluminium Optical Tube
  • Celestron's premium StarBright XLT coatings
  • 1500 mm focal length (f/10)
  • 25 mm eyepiece included (60x)
  • 1.25" visual back 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 CG-5/Vixen-style dovetail rail 

The C6 is a 6" aperture Schmidt-Cassegrain optical system has a 1500mm focal length (f/10) and offers 40% more light gathering than a 5” telescope. All C6-S models come standard with Celestron`s StarBright® XLT coatings.

It comes with a 1.25" eyepiece, star diagonal and 6x30 finderscope. The telescope also has a CG-5/Vixen-style dovetail for attaching it to popular mounts (e.g. Advanced VX).

Optical Design Schmidt-Cassegrain
Aperture 150mm (6")
Focal Length 1500mm (59")
Focal Ratio f/10
Focal Length of Eyepiece 1 25mm (0.98")
Magnification of Eyepiece 1 60x
Finderscope 6x30
Star Diagonal 1.25" Star Diagonal
Optical Tube Aluminium
Highest Useful Magnification 354x
Lowest Useful Magnification 21x
Limiting Stellar Magnitude 13.4
Resolution (Rayleigh) 0.93 arc seconds
Resolution (Dawes) 0.77 arc seconds
Light Gathering Power (Compared to human eye) 459x
Secondary Mirror Obstruction 56mm (2.2")
Secondary Mirror Obstruction by Diameter 37%
Secondary Mirror Obstruction by Area 14%
Optical Coatings StarBright XLT
Optical Tube Length 406mm (16")
Optical Tube Diameter 180mm (7.12")
Optical Tube Weight 10 lbs (4.54 kg)
Dovetail Vixen/CG-5 Dovetail bar



User manual