M31 Andromeda Galaxy

Andromeda Galaxy also known as Messier 31 is located in the constellation Andromeda. It is the closest largest spiral galaxy to our Milky Way galaxy. Located just 2.5 million light-years from Earth it is one of the furthest objects visible to the unaided eye. In roughly 4-5 billion years, the Andromeda galaxy and ours are expected to collide and merge to form a giant elliptical or lenticular galaxy.

Constellation Andromeda

Distance about 2.5 million light-years from Earth