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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 ).
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]
Key West is closer to Havana (about 106 miles or 171 kilometers by air or sea) [8] than it is to Miami (130 miles or 210 kilometers by air or 165 miles or 266 kilometers by road). [7] Key West is the usual endpoint for marathon swims from Cuba, including Diana Nyad's 2013 swim [33] [34] and Susie Maroney's 1997 swim from within a shark cage. [35]
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Conditional support I struck my “support” vote. Well, the full-size image file is obviously impractically too big. We’re doing few visitors a favor by showing a thumb in an article that—after going to the image’s file page and innocently clicking on the image (without reading or comprehending what the file size means)—results in a Service Pack-size download wait.
Messier 81, also known as NGC 3031 or Bode's Galaxy, is a spiral galaxy about 12 million light-years from Earth in the constellation Ursa Major. Due to its relative proximity, large size and active galactic nucleus , Messier 81 has been studied extensively by professional astronomers .
Charles Messier. The first edition of 1774 covered 45 objects (M1 to M45).The total list published by Messier in 1781 contained 103 objects, but the list was expanded through successive additions by other astronomers, motivated by notes in Messier's and Méchain's texts indicating that at least one of them knew of the additional objects.
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"