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 |
CD ROM | "The Sky®" Level 1 |
Tripod | 2 inch Stainless Steel |
Power Supply | Car Battery Adapter |
Highest Useful Magnification | 661 x |
Lowest Useful Magnification | 40 x |
Limiting Stella 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 % |
Telescope Weight | 91 lb (41.28 kg) |
Optical Tube Length |
24 in (609.6 mm) |
Counterweights |
3-11lb |
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 |