Celestron 9.25 Inch EdgeHD OTA Optical Tube

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