All Questions
Tagged with fundamental-astronomy telescope
4
questions
2
votes
1
answer
181
views
Need help with the calculations/conversion of a celestial object
I'm developing a telescope controller open-source application. I started this project with a very little knowledge of Astronomy.
Basically, the app is going to send data to telescope over a wireless ...
- 121
5
votes
3
answers
3k
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Relation between angular resolution and aperture?
The angular resolution of a telescope is given by $\frac{1.22\lambda}{D}$.
This should mean that the smaller the aperture D, the higher the angular resolution. But it is exactly the opposite - why?
3
votes
2
answers
3k
views
What's the useful magnification for a scope with 70mm objective lens?
Some of the spotting scopes which are e.g. 70mm claim to magnify terrestrial objects at 75x. But yet they cannot produce sharp and clear images at even 30x-35x.
While 90mm scopes can do a better job ...
- 31
7
votes
2
answers
921
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Why do we use FITS format for scientific images especially in astronomy? How is it different from formats such as JPEG, PNG etc?
I am new to astronomy and I found that the telescopic dataset can be stored in the FITS format instead of JPEG. Why do we have a special image format just for scientific images?
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