Celestron NexStar 90 SLT
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Rating: Maksutov-Cassegrain type, 90 mm lens, f. the distance 1250 mm, relative. hole 1/14, mount azimuth (AZ), the eyepiece 9 mm/25 mm |
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| Main (Celestron NexStar 90 SLT) | |
| Type (optical layout) | Maksutov-Cassegrain |
| Lens diameter (aperture) | 90 mm |
| Enlightenment optics | full |
| Focal length | 1 250 mm |
| Relative aperture | 1/14 |
| Resolution | 1.29 " |
| Magnitude limit | 12.3 m |
| The maximum useful magnification | 213 X |
| Type mount | azimuth (AZ) |
| Eyepieces and tips (Celestron NexStar 90 SLT) | |
| The number of eyepieces included | 2 |
| The diameter of the eyepiece | 1.25" |
| The focal length eyepieces | 9 mm, 25 mm |
| Optical zoom | 50x, 139x |
| A relay lens |  |
| A relay mirror | |
| Inverting prism | 90° |
| The optical finder | with the red dot |
| Finder pole | |
| The crowbar (Celestron NexStar 90 SLT) | |
| Computerized mount |  |
| Preset speed | 3 °/s |
| Automatic binding to the sky | |
| Computer control | |
| GPS | |
| Clockwork | |
| Adjusting the ride | |
| The mechanism for fine tuning | |
| Coordinate circles | |
| Tripod | steel |
| Dimensions and weight (Celestron NexStar 90 SLT) | |
| The length of the optical pipe | 280 mm |
| Weight | 10.72 kg |
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