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Celestron-c8-sgt.1087514
4.2 out of 10

Celestron C8-SGT

Optical Design : Schmidt-Cassegrain Aperture : 203.2 mm (8 in) F Read more

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Specifications

Feature
Value
Comment
Optical Design :
Schmidt-Cassegrain
Aperture :
203.2 mm (8 in)
Focal Length :
2032 mm (80 in)
Focal Ratio :
10
Finderscope :
6x30
Mount :
CG-5 Equatorial
Eyepiece 1 :
25 mm (0.98 in)
Magnification 1 :
81 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 :
480 x
Lowest Useful Magnification :
29 x
Limiting Stellar Magnitude :
14
Resolution (Rayleigh) :
0.69 arcsec
Resolution (Dawes) :
0.57 arcsec
Photographic Resolution :
200 line/mm
Light Gathering Power :
843 x
Angular Field of View :
0.64 °
Linear Field of View (@1000 yds) :
34 ft (10.36 m)
Optical Coatings :
Starbright Coating/XLT
Secondary Mirror Obstruction :
2.7 in (68.58 mm)
Secondary Mirror Obstruction by Area :
11.4 %
Secondary Mirror Obstruction by Diameter :
33.8 %
Optical Tube Length :
17 in (431.8 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
Motor Ports :
Aux Port, Autoguide Ports
Database :
40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Telescope Weight :
54.5 lbs (24.72 kg)
Counterweights :
1-11 lbs
Software Precision :
24 bit, 0.08 arcsec calculation
Release Date
First seen
9 September 2003