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Celestron Advanced Series C8-SGT Schmidt-Cassegrain Telescope

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Product Description

Optical Design Schmidt-Cassegrain
Aperture 203.2 mm (8 in)
Focal Length 2032 mm (80 in)
Focal Ratio
Finderscope 6x30
Mount CG-5 Equatorial
Eyepiece 1 25 mm (0.98 in)
Magnification 1 81 x
Star Diagonal 1.25"
Accessory Tray Yes
CD ROM "The Sky®" Level 1
Tripod 2 inch Stainless Steel
Power Supply Car Battery Adapter
Highest Useful Magnification 480 x
Lowest Useful Magnification 29 x
Limiting Stella 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 %
Telescope Weight 54.5 lb (24.72 kg)
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
Software Precision 24bit, 0.08 arcsec calculation
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

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