images

M31, Andromeda Galaxy, and Cepheid M31_V1

by

R.Gendler/BYU/Novapix

Reference

a-gax02-24036

Date

2011-01-07

M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. This image shows a part of the galaxy around M31_V1, the first Cepheid Variable star in M31 discovered by Edwin Hubble.