Telescope COMETRON FirstScope
Code: 21023
Optical Design | Newtonian Reflector |
---|---|
Aperture (mm) | 76 mm (2.99 in) |
Telescope Type | Manual |
Focal Length | 300 mm (12 in) |
Focal Ratio | 3.95 |
Focal Length of Eyepiece 2 (mm) | Kellner 10 mm (0 in) |
Finderscope | 5x24 |
Tripod | None |
Highest Useful Magnification | 180 x |
Lowest Useful Magnification | 11 x |
Limiting Stellar Magnitude | 11.9 |
Resolution (Rayleigh) | 1.83 arc seconds |
Resolution (Dawes) | 1.53 arc seconds |
Light Gathering Power (Compared to human eye) | 118 x |
Secondary Mirror Obstruction | 1.1 in (28 mm) |
Secondary Mirror Obstruction by Diameter | 37% |
Secondary Mirror Obstruction by Area | 14% |
Optical Coatings | Aluminum with SiO2 |
Optical Tube Length | 10 in (254 mm) |
Total Telescope Kit Weight | 4.3 lbs (1.95 kg) |
Warranty | 2-year Telescope Warranty |