Telescope on Shabbat

Can you look through a telescope on Chag or Shabbat?

A – Its machloket Rambam and rashba and m.b. paskens its fine but yere shamayim should try to refrain
Q – Kvod harav, whats the issur? And are binoculars the same?
A – The Isur would be learning things that aren’t Torah on shabbat and using something else is included in that.but binoculars are not something you learn from and its allowed