Mar 18, 2019 at 11:57 AM

Andromeda Galaxy

Informer: Wegen Fantu, from Space Science category

Andromeda (astronomy), in astronomy, large constellation of the northern hemisphere situated just south of the constellation Cassiopeia and west of the constellation Perseus. Andromeda contains no stars of the first magnitude but is noted as the area of sky containing the Andromeda Galaxy, a member of the local group to which our own Milky Way belongs. At a distance of about 2.5 million light-years, the Great Andromeda Spiral Galaxy is both the nearest spiral galaxy and the most distant object that can be seen with the naked eye. Before its nature was determined by means of powerful telescopes, it was erroneously believed to be a nebula, or cloud of interstellar matter. Through telescopes it is seen to have two small companion galaxies of elliptical form.
The Andromeda Galaxy, a spiral galaxy similar to our own Milky Way Galaxy, is the farthest object from Earth visible to the naked eye. Its whirlpool of stars can be seen from the Northern Hemisphere in the constellation Andromeda. The Milky Way and Andromeda galaxies are part of a group of galaxies called the Local Group, which in turn is part of larger group called the Virgo Cluster. Encarta Encyclopedia, Rebert Gendler/NASA

Info source: Microsoft student


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