Celestron C11 User Manual

2021/08/26 08:47 3/7 C11 & CGE PRO
OST Wiki - https://polaris.astro.physik.uni-potsdam.de/wiki/
Fig. 7: Cables for the
connection of the electronic
box with the engines
Fig. 8: Electronic box with
ports for the cables
Fig. 9: CGE PRO with the cable
attached
Fig. 10: Mobile power supply
and the cable reel
Fig. 11: Hand terminal
Fig. 12: Ports for the power
supply (left) and the hand
terminal (right) at the
electronic box

Celestron C11 Specifications

General

Focal Length	2800 mm
Focal Ratio	f/10
Optical Design	Schmidt-Cassegrain
Highest Useful Magnification	660x
Lowest Useful Magnification	40x
Limiting Stellar Magnitude	14.7
Resolution (Dawes)	0.42 arc seconds
Light Gathering Power	1593x
Secondary Mirror Obstruction	95 mm
Secondary Mirror Obstruction by Diameter	34%
Aperture	279 mm (11 inches)
Resolution (Rayleigh)	0.5 arc seconds
Optical Tube Length	610 mm (24 in)
Mount Type	Varies by configuration
Weight	Varies by configuration
Star Diagonal	Not included (typically sold as OTA only)
Finderscope	Not included (typically sold as OTA only)
Eyepiece	Not included (typically sold as OTA only)