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Item | 08945 |
Product Name | Orion SkyQuest XT8 Classic Dobsonian Telescope |
Best for viewing | Brighter deep sky |
Best for imaging | Lunar & planetary |
User level | Beginner |
Optical design | Reflector |
Optical diameter | 203mm |
Focal length | 1200mm |
Focal ratio | f/5.9 |
Optics type | Parabolic |
Glass material | Low thermal expansion borosilicate glass |
Eyepieces | Sirius Plossl 25.0mm (1.25") |
Magnification with included eyepieces | 48x |
Resolving power | 0.57arc*sec |
Lowest useful magnification | 29x |
Highest useful magnification | 300x |
Highest theoretical magnification | 406x |
Limiting stellar magnitude | 14.2 |
Optical quality | Diffraction limited |
Finder scope | EZ Finder II |
Focuser | 2" Crayford |
Secondary mirror obstruction | 47mm |
Secondary mirror obstruction by diameter | 23% |
Secondary mirror obstruction by area | 5% |
Mirror coatings/over-coatings | Aluminum & Silicon Dioxide |
Mount type | Dobsonian |
Astro-imaging capability | Lunar & planetary |
Computerized compatibility | Not compatible |
Bearing material | PTFE and UHMW bearings |
Tube material | Steel |
Tripod material | Wood |
Length of optical tube | 46.5 in. |
Weight, optical tube | 20.3 lbs. |
Weight, mount/tripod | 20.7 lbs. |
Weight, fully assembled | 41.0 lbs. |
Other features | CorrecTension system, 2" Focuser, 1.25" eyepiece adapter |
Warranty | One year |