Celestron C9.25 SCT - OTA

Your Price: $1,969.99

Celestron C9.25 SCT optical tube

Part Number: 91025-XLT

Availability: 7 - 10 day delivery

Quantity

Overview

9.25" Schmidt-Cassegrain Optical Tube Assembly
Aluminum Optical Tube
Celestron's premium StarBright XLT coatings
2350 mm focal length (f/10)
25 mm eyepiece included (94x)
Visual back allows 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 dovetail rail compatible with CG-5 Advanced Series mount

9.25" Schmidt-Cassegrain Optical Tube Assembly
Aluminum Optical Tube
Celestron's premium StarBright XLT coatings
2350 mm focal length (f/10)
25 mm eyepiece included (94x)
Visual back allows 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 dovetail rail compatible with CG-5 Advanced Series mount

Optical Design	Schmidt-Cassegrain
Aperture (mm)	234.95 mm (9.25 in)
Focal Length	2350 mm (93 in)
Formula:Focal Ratio	10
Focal Length of Eyepiece 1 (mm)	25 mm (0.98 in)
Formula:Magnification of Eyepiece 1	94 x
Finderscope	6x30
Star Diagonal	1.25
Optical Tube	Aluminum
Formula:Highest Useful Magnification	555 x
Formula:Lowest Useful Magnification	34 x
Formula:Limiting Stellar Magnitude	14.4
Formula:Resolution (Rayleigh)	0.59 arc seconds
Formula:Resolution (Dawes)	0.49 arc seconds
Formula:Light Gathering Power (Compared to human eye)	1127 x
Secondary Mirror Obstruction	3.35 in (85 mm)
Formula:Secondary Mirror Obstruction by Diameter	36%
Formula:Secondary Mirror Obstruction by Area	13%
Optical Coatings	StarBright / XLT
Optical Tube Length	22 in (559 mm)
Optical Tube Weight	20 lbs (9.07 kg)
Dovetail Compatibility	CG-5 Mount