The Whirlpool galaxy (Messier 51)
Bob English from Franklin, TN. USA sent us yet another one of his fresh images: M51. He says: "George Jerry reminded me of the connection with Birr Castle and Lord Rosse, and the drawings showing the spiral structure. This image was made on Sunday, March 2nd 2008 at 5:30UT. It's the first time I've used my old 6" refractor (23 years old, yes, I know, not that old by refractor standards) with the new CCD camera. The total exposure time was 3.5 hours." Thank you once more, Bob!