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M81 (left) and M82 (right). M82 is one of two galaxies strongly influenced gravitationally by M81. The other, NGC 3077, is located off the top edge of this image. M81 with satellite galaxy Holmberg IX in the top center-right corner. Only one supernova has been detected in Messier 81. [18]
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]
Messier 82 (also known as NGC 3034, Cigar Galaxy or M82) is a starburst galaxy approximately 12 million light-years away in the constellation Ursa Major. It is the second-largest member of the M81 Group , with the D 25 isophotal diameter of 12.52 kiloparsecs (40,800 light-years ).
Most distant (difficult) naked eye object. Closest unbarred spiral galaxy to us and third largest galaxy in the Local Group. 61,100 ly 96 Andromeda XXI [68] dSph [55] 2.802 0.859 −9.9 Local Group: Satellite of Andromeda 97 Tucana Dwarf: dE5 2.87 0.88 [7] −9.16 15.7 [1] Local Group [7] Isolated group member — a 'primordial' galaxy [69] 98 ...
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. This caused Carl Seyfert in 1943 to include it in his list of galaxies, which are now called Seyfert Galaxies. However, NGC 3077, though an ...
Astronomers using the James Webb Space Telescope have spied dynamic flares of light near the supermassive black hole at the center of the Milky Way galaxy. The constant, rapid-fire display ...
2 galaxies Two spiral galaxies currently starting a collision, tidally interacting, and in the process of merger. [citation needed] Eyes Galaxies (NGC 4435 & NGC 4438, Arp 120) 2 galaxies Two galaxies which have interacted or still interacting via an off-center collision, both had interacted with M86 in the past. [citation needed]
SN 2014J was a type-Ia supernova in Messier 82 (the 'Cigar Galaxy', M82) discovered in mid-January 2014. [3] It was the closest type-Ia supernova discovered for 42 years, and no subsequent supernova has been closer as of 2023. The supernova was discovered by chance during an undergraduate teaching session at the University of London Observatory.