Processed in Pixinsight and Adobe Photoshop

The Andromeda galaxy, our Milky Way's closest neighbor, is the most distant object in the sky that you can see with your unaided eye — but only on a clear night from a location with a very dark sky. . Andromeda's close proximity to Earth — at only 2.5 million light-years away — makes it a convenient target to observe for extrapolations about other spiral galaxies.