Celestron 9.25 Inch EdgeHD OTA Optical Tube - 91040-XLT

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Celestron EdgeHD 9.25" - General Features

 

  • 9.25 EdgeHD Optical Tube Assembly
  • Aluminum Optical Tube
  • Celestron's premium StarBright XLT coatings
  • 2350mm focal length (f/10)
  • 23mm Axiom 2" eyepiece included (102x)
  • 9x50 finderscope to help accurately find objects
  • 2" diagonal provides more comfortable viewing position when observing objects that are high in the sky
  • Mirror Support Knobs hold the mirror in place and reduces image shift during imaging.
  • Tube vents with integrated 60 micron mesh filter allowing hot air to be released from behind the primary mirror.
  • Fastar Compatible optical tubes are equipped with a removable secondary mirror for fast f/2 ccd imaging
  • Includes dovetail rail compatible with CGE mount

Specifications

 

  • Optical Design  : Aplanatic Schmidt
  • Aperture  : 234.95 mm (9.25 in)
  • Focal Length  : 2350 mm (92.52 in)
  • Focal Ratio  : f/10
  • Finderscope  : 9x50
  • Optical Tube  : Aluminum
  • Eyepiece 1  : 23 mm (0.91 in)
  • Magnification 1  : 102 x
  • Star Diagonal  : 2" w/ 1.25" adapter
  • Optical Coatings  : StarBright XLT
  • Secondary Mirror Obstruction  : 3.35 in (85.09 mm)
  • Secondary Mirror Obstruction by Area  : 13.1 %
  • Secondary Mirror Obstruction by Diameter  : 36.2 %
  • Optical Tube Length  : 22 in (558.8 mm)
  • Optical Tube Weight  : 21 lb (9.53 kg)
  • Dovetail Compatibility  : CGE Mount/ Orange