Galaxies & Star Clusters - Barry Wilson
Messier 81 & 82 and the faint IFN

Messier 81 & 82 and the faint IFN

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 harbours a supermassive black hole.

essier 82 (also known as NGC 3034, Cigar Galaxy or M82) is a starburst galaxy about 12 million light-years away in the constellation Ursa Major. It is about five times more luminous than the whole Milky Way and one hundred times more luminous than our galaxy's center. The starburst activity is thought to be triggered by interaction with neighboring galaxy M81, and M82 is a member of the M81 Group. As the closest starburst galaxy to our own, M82 is the prototypical example of this type of galaxy. SN 2014J, a Type Ia supernova, was observed in the galaxy on 21 January 2014. In 2014, in studying M82, scientists discovered the brightest pulsar yet known, designated M82 X-2 (source Wikipedia).

The IFN (integrated flux nebula) is dust, however, unlike most known nebulae, they do not reflect, scatter or fluoresce due to the radiation of any individual star or cluster of stars, but do so from the integrated flux of all the stars in the Milky Way Galaxy. In other words, the IFN is illuminated by the glow of our own galaxy.

I plan to capture a widefield image of M81 & 82 using my Baby Q and better capture the IFN.

LRGB composition, total integration 3.3hrs, April 2014. William Optics FLT132 at F5.6 - Avalon Linear Fast Reverse - Atik 460EX - Baader LRGB filters.

M81M82IFN