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Celestron-c11-sgt.1087521

Celestron C11-SGT

Optical Design : Schmidt-Cassegrain Aperture : 280 mm (11.02 in) Read more

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Specifications

Feature
Value
Comment
Optical Design :
Schmidt-Cassegrain
Aperture :
280 mm (11.02 in)
Focal Length :
2800 mm (110.24 in)
Focal Ratio :
10
Finderscope :
9x50
Mount :
CG-5 Equatorial
Eyepiece 1 :
40 mm (1.57 in)
Magnification 1 :
70 x
Star Diagonal :
1.25
Accessory Tray :
Yes
Tripod :
2 inch Stainless Steel
CD ROM :
"The Sky ® " Level 1
Power Supply :
Car Battery Adapter
Highest Useful Magnification :
661 x
Lowest Useful Magnification :
40 x
Limiting Stellar Magnitude :
14.7
Resolution (Rayleigh) :
0.5 arcsec
Resolution (Dawes) :
0.41 arcsec
Photographic Resolution :
200 line/mm
Light Gathering Power :
1600 x
Angular Field of View :
0.71 °
Linear Field of View (@1000 yds) :
38 ft (11.58 m)
Optical Coatings :
Starbright Coating/XLT
Secondary Mirror Obstruction :
3.75 in (95.25 mm)
Secondary Mirror Obstruction by Area :
11.6 %
Secondary Mirror Obstruction by Diameter :
34 %
Optical Tube Length :
24 in (609.6 mm)
Motor Drive :
DC Servo motors with encoders, both axes
Computer Hand Control :
Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons
Slew Speeds :
3°/sec
Tracking Rates :
Sidereal, Solar and Lunar
Tracking Modes :
EQ North and EQ South
Alignment Procedures :
AutoAlign, 2-Star Alignment, Quick Align
Communication Ports :
RS-232 communication port on hand control
Database :
40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Database :
Aux Port, Autoguide Ports
Telescope Weight :
91 lbs (41.28 kg)
Counterweights :
3-11 lbs
Software Precision :
24 bit, 0.08 arcsec calculation
Release Date
First seen
22 July 2008