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Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a grand design spiral galaxy about 12 million light-years away in the constellation Ursa Major. It has a D 25 isophotal diameter of 29.44 kiloparsecs (96,000 light-years ).
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The M81 Group is a galaxy group in the constellations Ursa Major and Camelopardalis that includes the galaxies Messier 81 and Messier 82, as well as several other galaxies with high apparent brightnesses. [1] The approximate center of the group is located at a distance of 3.6 Mpc, making it one of the nearest groups to the Local Group. [1]
Huge file, very detailed, clear EV (lead image in the article on the subject), very "stop, stare, click". Already a FP on Commons, caption nabbed from the article. As with any image of this size, Dschwen's image viewer will be useful. Articles in which this image appears Messier 81, M81 Group, bulge (astronomy), unbarred spiral galaxy
Picture Galaxy Type Distance from Earth Magnitude Group Membership Notes Diameter (ly) Millions of light-years Mpc M m - Milky Way: SBbc 0.0265 (to the galactic center) [2] 0.008 [2] ...
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In coordinated press conferences across the globe, EHT researchers revealed that they succeeded, unveiling the first direct visual evidence of the supermassive black hole in the centre of Messier 87 and its shadow. In this image of M87* taken on 11 April 2017 (a representative example of the images collected in a global 2017 EHT campaign), the ...
M81 or M-81 may refer to: M-81 (Michigan highway), a state highway in Michigan; McDonnell-Douglas MD81; Messier 81, a spiral galaxy in the constellation Ursa Major, also known as NGC 3031 or Bode's Galaxy; U.S. Woodland, a camouflage pattern colloquially known as "M81"