Celestron C9 1/4 A Telescope StarBright XLT 91027-XLT

Celestron C9 1/4 A Telescope StarBright XLT 91027-XLT

With an optical tube that measures 22-inches in length and weighs 20 pounds, this mid level optical instrument meets the demands of observers and astrogimagers who want a telescope that's more portable than a reflector or refractor.The scope offers a large 9.25-inch aperture and a long focal length of 2350 mm.

Celestron's unique StarBright XLT optical coatings dramatically increase light transmission by up to 97 percent on its Schmidt corrector lenses. Vew pinpoint stars across the largest imaging sensors in bright, crisp detail and capture breathtaking, sharp, flawless astroimages.

The 9.25-inch Schmidt-Cassegrain Optical Tube Assembly has an aluminum optical tube and comes with a 25 mm eyepiece and a visual back which allows for use with other 1.25-inch accessories. The 6x30 finderscope helps accurately find objects in the night sky and the star diagonal provides more comfortable viewing position when observing objects that are high in the sky. The 9.25-inch OTA includes a dovetail rail compatible with CGE Advanced Series mount.

What's in the Box

• Celestron 9.25" SCT (CGE) Optical Tube Assembly
• 9.25" Schmidt-Cassegrain Optical Tube Assembly
• 25mm Eyepiece 
• 1.25" Visual Back
• 6x30mm Finderscope
• 1.25" Star Diagonal
• CGE Dovetail Rail
• Two Year Warranty

Specifications

• Optical Design: Schmidt-Cassegrain
• Aperture (mm): 234.95 mm (9.25")
• Focal Length: 2350 mm (93")
• Focal Ratio: 10
• Focal Length of Eyepiece 1 (mm): 25 mm (0.98")
• Magnification of Eyepiece 1: 94x
• Finderscope: 6x30
• Star Diagonal: 1.25
• Optical Tube: Aluminum
• Highest Useful Magnification: 555x
• Lowest Useful Magnification: 34x
• Limiting Stellar Magnitude:14.4
• Resolution (Rayleigh): 0.59 arc seconds
• Resolution (Dawes): 0.49 arc seconds
• Light Gathering Power (Compared to human eye): 1127x
• Secondary Mirror Obstruction: 85 mm (3.35")
• Secondary Mirror Obstruction by Diameter: 36%
• Secondary Mirror Obstruction by Area: 13%
• Optical Coatings: StarBright XLT
• Optical Tube Length: 559 mm (22")
• Optical Tube Weight: 20 lbs (9.07 kg)
• Dovetail Compatibility: CGE Mount

Features

• Large 9.25" aperture and long focal length of 2350 mm
• StarBright XLT optical coatings
• Aluminum optical tube
• 25 mm eyepiece
• Visual back 
• 6x30 finderscope
• Star diagonal
• Dovetail rail compatible with CGE Advanced Series mount

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