I would like to know how much an observatory with a good telescope costs to study the stars. So that we can get an idea of it ..
If you mean a professional observatory, then I haven't got any idea of any precise numbers, but I know it's going to be very expensive, if you want an observatory with a spectrograph. Those things are VERY expensive.
The size of the telescope is also a big factor, of course. The higher the resolution you want, the more light you're going to need, so the bigger the telescope needs to be.
A guesstimate says that a 2-meter class telescope today would cost around $2-3,000,000. http://adsabs.harvar...ASPC...55....7A
It's just a guess, it could be more, depending on the location chosen for the observatory. A site with very good conditions is usually difficult to reach and tends to increase the cost dramatically.
Don't forget the running costs for electricity, maintenance, regular updates on instrumentation, staff, etc.
Edited by Astrojensen, 09 April 2021 - 01:56 PM.