Celestron TravelScope 70
refractors, max. useful gain: 165 x, lens diameter (aperture): 70 mm, focal distance: 400 mm, relative hole: 5.7 : 1, Weight: 1.5 kg
refractors, max. useful gain: 165 x, lens diameter (aperture): 70 mm, focal distance: 400 mm, relative hole: 5.7 : 1, Weight: 1.5 kg
Main Characteristics |
|
Types of Telescopes |
refractors |
max. useful increase |
165x |
Lens diameter (aperture) |
70 mm |
Focal Distances |
400 mm |
Relative openings |
5.7 :1 |
Resolution ability |
1.66 " |
Illumination of optics |
Fully |
Length of optical piping |
430 mm |
Rayleigh's Criterion |
1.98 angles |
Dawes Limit |
1.66 angles |
Limiting stellar magnitude |
11.7 m |
Penetration ability (stellar magnitude) |
10.7 km |
Self-guided system |
|
Type of mounting |
azimuth |
Weight (disambiguation) |
2.88 kg |
Functions and features |
|
Number of eyeglasses in the kit |
2 |
Planting diameter of the eyepiece |
1.25 " |
Focal distances of eyeglasses |
10, 20 mm |
Optical magnification |
20x, 40x |
Turning Lens |
|
Revolving mirror |
|
Turning prism |
|
Optical searcher |
|
Pole Seeker |
|
Computerized mounting |
|
Automatic Attachment to the Sky |
|
Computer-based control |
|
GPS |
|
Clockwork mechanism |
|
Adjustment of fluency |
|
Fine-tuning mechanism |
|
Co-ordinating circles |
|
Statutory |
Aluminium |