In one of the pictures you shared with us, I notice that we can see city lights through the window. Aren’t those lights a problem? How do you manage to overcome them? One of my friends who is passionate about astrophotography is always complaining about this kind of light (and he is super happy to live in the countryside where there is not such a problem).

As a side note, “Bootes” is actually “Bouvier” in French. I had to look for this word as I was unable to understand which constellation you were referring too. This is were my English is a bit too limited ;)