Caldwell 33 - The Eastern Veil Nebula. Around 15,000 years ago a star died spectacularly in the constellation of Cygnus. The Veil Nebula is the remnant of that explosion. It is around 2,500 light-years away.

Technical details: Taken with a Canon 40D with a 200mm f2.8 lens on iso 800 and consists of 31 x 60s exposures stacked in DeepSkyStacker and processed in Photoshop. Taken at the Kelling Heath Star Party in September 2008.