Levenhuk Ra 250N Dob
|
Rating: the Newtonian reflector, lens 254 mm, f. the distance 1255 mm, relative. hole 1/5, mount Dobson, the eyepiece 9 mm/30 mm |
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| Main (Levenhuk Ra 250N Dob) | |
| Type (optical layout) | reflector Newton |
| Lens diameter (aperture) | 254 mm |
| Enlightenment optics | multilayer |
| Focal length | 1 255 mm |
| Relative aperture | 1/5 |
| Resolution | 0.5 " |
| Magnitude limit | 14.7 m |
| The maximum useful magnification | 508 X |
| Type mount | Dobson |
| Eyepieces and tips (Levenhuk Ra 250N Dob) | |
| The number of eyepieces included | 2 |
| The diameter of the eyepiece | 1.25" |
| The focal length eyepieces | 9 mm, 30 mm |
| Optical zoom | 41x, 139x |
| A relay lens |  |
| A relay mirror | |
| Inverting prism | |
| The optical finder |  |
| Finder pole | |
| The crowbar (Levenhuk Ra 250N Dob) | |
| Computerized mount | |
| Automatic binding to the sky | |
| Computer control | |
| GPS | |
| Clockwork | |
| Adjusting the ride | |
| The mechanism for fine tuning | |
| Coordinate circles | |
| Tripod | |
| Dimensions and weight (Levenhuk Ra 250N Dob) | |
| The length of the optical pipe | 1 230 mm |
| Weight | 12.2 kg |
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