Astronomy space background photo: Milky Way in Perseus constellation with Double Star Cluster (Chi-H). Taken in August 2010 at Seliger Lake (Russia). Exposure 92x30 seconds=46 minutes. Camera Canon350d with lens Fudjinon 55mm/f1.8. f=4, ISO800. Stars and nebulae pattern are visible. Can be used as a wallpaper or backdrop. By Igor Sokalski.