C11 SCT OTA - CGE

Title Default Title
Qty:
  • 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

Specifications

Aperture (mm) 279.4 mm (11 in)
Dovetail Compatibility CGE Mount
Finderscope 9x50
Focal Length 2800 mm (110 in)
Focal Length of Eyepiece 1 ... 40 mm (1.57 in)
Focal Ratio 10
Highest Useful Magnification 660 x
Light Gathering Power (Comp... 1593 x
Limiting Stellar Magnitude 14.7
Lowest Useful Magnification 40 x
Magnification of Eyepiece 1 70 x
Optical Coatings StarBright / XLT
Optical Design Schmidt-Cassegrain
Optical Tube Aluminum
Optical Tube Length 24 in (610 mm)
Optical Tube Weight 27.5 lbs (12 kg)
Resolution (Dawes) 0.42 arc seconds
Resolution (Rayleigh) 0.5 arc seconds
Secondary Mirror Obstructio... 12%
Secondary Mirror Obstruction 3.75 in (95 mm)
Star Diagonal 1.25