Andromeda is a constellation in the northern sky. It is named after Andromeda, the princess in the Greek legend of Perseus who was chained to a rock to be eaten by the sea monster Cetus. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. Andromeda is prominent in the northern sky during the fall, along with several other constellations named for characters in the Perseus myth. Several binary stars along with the Andromeda Galaxy (M31), the closest galaxy to the Milky Way and one of the brightest Messier objects, lie in Andromeda's borders.
Andromeda is a constellation in the northern sky. It is named after Andromeda, the princess in the Greek legend of Perseus who was chained to a rock to be eaten by the sea monster Cetus. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. Andromeda is prominent in the northern sky during the fall, along with several other constellations named for characters in the Perseus myth. Several binary stars along with the Andromeda Galaxy (M31), the closest galaxy to the Milky Way and one of the brightest Messier objects, lie in Andromeda's borders.