What is Andromeda?
1. a large spiral galaxy visible to the naked eye, 2 million light years away; the largest galaxy in the cluster the "local group"
2. the constellation of the northern hemisphere containing the Andromeda galaxy
The term Andromeda can mean several different things. In mythology, Andromeda is the daughter of Cassiopeia and Cepheus. Andromeda also can refer to the Andromeda Galaxy, which is 2.5 million light years away from us. Andromeda is also a television series and there's a game called Andromeda. Andromeda can refer to any of these things.