M31 - Andromeda Galaxy
A galaxy is a massive, gravitationally bound system consisting of stars, stellar remnants, an interstellar medium of gas and dust, and dark matter. Examples of galaxies range from dwarfs with as few as ten million stars to giants with one hundred trillion stars, each orbiting their galaxy's own center of mass. ― source and more information wikipedia
Date: 2013-10-01
Location: Älvsjö, Sweden
Telescope: Nikon 18-55mm F3.5-5.6G VR AF-S DX lens
Camera: Nikon D5100
ISO: 1600