Andromeda?

                                ANDROMEDA GALAXY   

                         

   The Andromeda galaxy (also known as M31 or NGC 224) is a spiral galaxy which is approximately 2.5 million light years away from the earth. From our galaxy, it will take 100 years for light to reach Andromeda. It means that if a light appeared in Andromeda, we will see that light 100 years after it's appearing. Known to be earth's twin galaxy, Andromeda is the largest galaxy in the local group. Although it is the largest in the Local Group, Milky Way contains more dark matter and could be the most massive in the grouping. It is also the nearest spiral galaxy to our galaxy The Milky Way. Getting it's name from where in the sky it appears, Andromeda was named after the mythological princess Andromeda. In 2006, the Spitzer Space Telescope revealed that Andromeda Galaxy contains one trillion stars. It is almost twice the number of stars in Milky Way.

References: http://en.wikipedia.org/wiki/Andromeda_Galaxy