Celestron NexStar 90 SLT
mirrored lens, max. useful gain: 213 x, lens diameter (aperture): 90 mm, focal distance: 1250 mm, Relative Hole: 13.9 :1, self-directed system, optical pipe length: 280 mm, weight: 5.4 kg
mirrored lens, max. useful gain: 213 x, lens diameter (aperture): 90 mm, focal distance: 1250 mm, Relative Hole: 13.9 :1, self-directed system, optical pipe length: 280 mm, weight: 5.4 kg
Main Characteristics |
|
Types of Telescopes |
Maxutov-Kasegren |
max. useful increase |
213x |
Lens diameter (aperture) |
90 mm |
Focal Distances |
1,250 mm |
Relative openings |
14 :1 |
Resolution ability |
1.29 " |
Illumination of optics |
Fully |
Length of optical piping |
280 mm |
Rayleigh's Criterion |
1.55 angles |
Dawes Limit |
1.29 angles |
Limiting stellar magnitude |
12.3 m |
Penetration ability (stellar magnitude) |
12.3 m |
Self-guided system |
|
Type of mounting |
azimuth |
Weight (disambiguation) |
10.72 kg |
Functions and features |
|
Number of eyeglasses in the kit |
2 |
Planting diameter of the eyepiece |
1.25 " |
Focal distances of eyeglasses |
25. 9 mm |
Optical magnification |
50x, 139x |
Turning Lens |
|
Revolving mirror |
|
Turning prism |
|
Optical searcher |
|
Pole Seeker |
|
Computerized mounting |
|
Channeling speed |
3 |
Automatic Attachment to the Sky |
|
Computer-based control |
|
GPS |
|
Clockwork mechanism |
|
Adjustment of fluency |
|
Fine-tuning mechanism |
|
Co-ordinating circles |
|
Statutory |
steel |