
- Kevyt ja kannettava, kaukoputki matkalle
- Yksinkertainen suunnittelu yksinkertaistaa käyttöä aloittelijoille
- etsin ja kaksi okulaaria
Ominaisuudet:
Optical Design | Newtonian Reflector |
Aperture | 76mm (2.99") |
Focal Length | 300mm (12") |
Focal Ratio | f/3.95 |
Focal Length of Eyepiece 1 | 20mm (0.79") |
Magnification of Eyepiece 1 | 15x |
Focal Length of Eyepiece 2 | 10mm (0.4") |
Magnification of Eyepiece 2 | 30x |
Barlow Lens | Not Included |
Finderscope | 5x24 |
Star Diagonal | Not Included |
Optical Tube | Plastic |
Highest Useful Magnification | 180x |
Lowest Useful Magnification | 11x |
Limiting Stellar Magnitude | 11.9 |
Resolution (Rayleigh) | 1.83 arc seconds |
Resolution (Dawes) | 1.53 arc seconds |
Light Gathering Power (Compared to human eye) | 118x |
Secondary Mirror Obstruction | 28mm (1.1") |
Secondary Mirror Obstruction by Diameter | 37% |
Secondary Mirror Obstruction by Area | 14% |
Optical Coatings | Aluminum with SiO2 |
Optical Tube Length | 254mm (10") |
Mount Info: | |
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Tripod | None |
Total Telescope Kit Weight | 4.3 lbs (1.95 kg) |