Jeff Copland once gave a talk on Astrophotography to our club members. He said that of all the things he'd taught himself, astrophotography was the most difficult. Here are some of his photographs.
I do not have specific exposure information. They were taken with either a 14" f/11 SCT, a 10" f/4.5 Newtonian, or a piggyback camera. All were scanned from slides.
All of the images are copyright Jeff Copland.