Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  M 81  ·  NGC 3031
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M81, Patrick Stevenson
M81
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M81

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M81, Patrick Stevenson
M81
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M81

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Description

Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a grand design spiral galaxy about 12 millionlight-years away in the constellationUrsa Major. It has a D25 isophotal diameter of 29.44 kiloparsecs (96,000 light-years).=10.5px   Because of its relative proximity to the Milky Way galaxy, large size, and active galactic nucleus (which harbors a 70 million M☉=10.5px   supermassive black hole), Messier 81 has been studied extensively by professional astronomers. The galaxy's large size and relatively high brightness also makes it a popular target for amateur astronomers.=10.5px   In late February 2022, astronomers reported that M81 may be the source of FRB 20200120E, a repeating fast radio burst.=10.5px   (Widipedia)

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