SLR cameras for astrophotography
Used since 1849 in telescopes, photography has made it possible to see more distant and faint objects, in the past using a system of photographic plates, which slowly gave way to today's modern CCD cameras. While DSLR cameras may seem like a completely separate family from the cameras used by large telescopes, the biggest difference between observatory cameras and SLR cameras is that observatory cameras are larger, much more sensitive and therefore Of course, much more expensive.
However, as long as there is a system to compensate for the Earth's rotation and a good sensor for long exposures, photography is still fully valid, but this time in the hands of amateurs who perform astrophotography using (generally) DSLR or mirrorless reflex cameras. Just look at the numerous astrophotographic galleries available on the internet, among which you can visit my astrophotographic album.
New advances
To do astrophotography you do not necessarily have to have ultra-powerful equipment, since it is all a matter of technique and learning some tricks to improve the quality of the exposures, which you can do by contacting people with experience in astrophotography, but also through trial and error, which In the end it is a more comforting learning.