CELESTRON - C11-A XLT (CGE) Optical Tube Assembly
In stock
Item #:
91036-XLT
$3,699.00
General Features
- 11" Schmidt-Cassegrain Optical Tube Assembly
- Aluminum Optical Tube
- Celestron's premium StarBright XLT coatings
- 2800 mm focal length (f/10)
- 40 mm eyepiece included (70x)
- Visual back allows for use with 1.25" accessories
- 9x50 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 CGE mount
- Optical Design Schmidt-Cassegrain
- Aperture (mm) 279.4 mm (11")
- Focal Length 2800 mm (110")
- Focal Ratio 10
- Focal Length of Eyepiece 1 (mm) 40 mm (1.57")
- Magnification of Eyepiece 1 70x
- Finderscope 9x50
- Star Diagonal 1.25
- Optical Tube Aluminum
- Highest Useful Magnification 660x
- Lowest Useful Magnification 40x
- Limiting Stellar Magnitude 14.7
- Resolution (Rayleigh) 0.5 arc seconds
- Resolution (Dawes) 0.42 arc seconds
- Light Gathering Power (Compared to human eye) 1593x
- Secondary Mirror Obstruction 95 mm (3.75")
- Secondary Mirror Obstruction by Diameter 34%
- Secondary Mirror Obstruction by Area 12%
- Optical Coatings StarBright / XLT
- Optical Tube Length 610 mm (24")
- Optical Tube Weight 27.5 lbs (12 kg)
- Dovetail Compatibility CGE Mount