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Results tagged with telescope
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user 37565
Questions related to the physical instruments for astronomical observations.
3
votes
0
answers
141
views
Getting good images only when I cover the part of telescope opening
I have recently built a 4.5inch reflector telescope. The primary mirror is of 900mm focal length. The issue is, when I try to observe Saturn I am not getting good images. … I examined the mirror several times but didn't found any deffect.images of the telescope` …
- 63
3
votes
1
answer
138
views
Telescope showing high chromatic aberration
Hi i have made a telescope with 1100 mm focal length objective lense and 21mm plano convex as eyepiece. Both these lenses are not achromatic. …
- 63