- #1
Abd Errahmane
- 11
- 0
hello,
I found a concave mirror telescope in my town
I think that it is very good for making Newton telescope
Estimated length of 20 cm
I will make a telescope , but I have a problem , I do not know the place of the focus
and the place of secondery mirror; after focus or before
can you help me please!
I found a concave mirror telescope in my town
I think that it is very good for making Newton telescope
Estimated length of 20 cm
I will make a telescope , but I have a problem , I do not know the place of the focus
and the place of secondery mirror; after focus or before
can you help me please!
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