At a distance of 2.2 million light-years, Andromeda Galaxy is one of the most distant celestial objects visible to the naked eye. It is listed in astronomical catalogs as M31 or NGC 224. Sky-Watcher Equinox 100 ED, Canon 450D DSLR, ISO1600, 1 x 240 sec exposure. Photo Credit: Anthony Urbano. For more images of galaxies, click here.