M81 - Bode's Galaxy and M82 - Cigar Galaxy.
Messier 81 (center-left) (also known as NGC 3031 or Bode's Galaxy) is a grand design spiral galaxy about 12 million light-years away, with a diameter of 90,000 light years, about half the size of the Milky Way, in the constellation Ursa Major. Due to its proximity to Earth, large size, and active galactic nucleus, Messier 81 has been studied extensively by professional astronomers.[1]
Messier 82 (center-right) (also known as NGC 3034, Cigar Galaxy or M82) is a starburst galaxy approximately 12 million light-years away in the constellation Ursa Major. A member of the M81 Group, it is about five times more luminous than the whole Milky Way and has a center one hundred times more luminous than our galaxy's center. The starburst activity is thought to have been triggered by interaction with neighboring galaxy M81.[2]
NGC 3077 (top left) is a small disrupted elliptical galaxy, a member of the M81 Group, which is located in the northern constellation Ursa Major. Despite looking much like an elliptical galaxy, it is peculiar for two reasons. First, it shows wispy edges and scattered dust clouds that are probably a result of gravitational interaction with its larger neighbors, similar to the galaxy M82. Second, this galaxy has an active nucleus. [3]
Taken during the same session as for M51, in Bucharest's suburban area.
Processing by:
https://www.astrobin.com/users/stille/_______________________
[1] -
https://en.wikipedia.org/wiki/Messier_81[2] -
https://en.wikipedia.org/wiki/Messier_82[3] -
https://en.wikipedia.org/wiki/NGC_3077
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