M31, the Andromeda Galaxy, with its companion galaxies, M32 (below) and M110 (aka NGC 205, above), framed to include the blue star Nu Andromedae at left, usually used as the star hopping guide star to find M31.

andromeda galaxy m110 m31 m32 messier ngc 205 nu andromedae sky astronomy astro photography skies science nature astro