Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a spiral galaxy about 12 million light-years away, in the constellation Ursa Major. Due to its proximity to Earth, large size, and active galactic nucleus (which harbors a 70 million solar mass supermassive black hole), Messier 81 has been studied extensively by professional astronomers. That's right...the black hole in the centre of this galaxy has a mass 70 million times that of our Sun.
Just beneath it can be seen the companion dwarf galaxy Holmberg IX. Of iits 20,000 stars, only about 10% are considered to be old stars with ages of billions of years. The rest are thought to be young stars with ages of only 10 – 200 million years, and show up blue here.
RCOS 12.5", Paramount ME2
Lum 18x10 mins
R,G,B 13x5 mins each