M-81. Bode's Galaxy (David Wood (SDAA TARO))

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

M-81. Bode's Galaxy, David Wood (SDAA TARO)

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M-81. Bode's Galaxy

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M-81. Bode's Galaxy

Messier 81, also known as Bode's Galaxy or NGC 3031, is a stunning spiral galaxy located approximately 11.8 million light-years away from Earth in the constellation Ursa Major. It is one of the most well-known galaxies in the night sky and holds significant scientific importance.Bode's Galaxy is named after the German astronomer Johann Elert Bode, who first observed it in 1774. With a diameter of about 90,000 light-years, it is roughly half the size of our Milky Way galaxy but exhibits similar spiral structure and characteristics. The galaxy is part of the M81 Group, a small cluster of galaxies that includes several other members.One of the distinctive features of M81 is its bright, prominent spiral arms that wrap around its central bulge. These arms are filled with regions of active star formation, giving rise to numerous young, massive blue stars. The galaxy's blue tint is a result of these hot, young stars dominating its visible light.At the core of Bode's Galaxy lies a supermassive black hole with a mass estimated to be around 70 million times that of our Sun. The presence of this massive black hole is believed to be responsible for the energetic activity observed in the galaxy, including the emission of high-energy radiation and jets of particles.M81 has been extensively studied by astronomers due to its proximity and its importance in understanding the dynamics and evolution of spiral galaxies. It has served as a benchmark for studying galactic structure, star formation, and the interactions between galaxies.

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M-81. Bode's Galaxy

M-81. Bode's Galaxy

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