Western Veil Nebula

The Western Veil is also known as the witch's broom, is part of a larger structure known simply as the Veil Nebula. The source of the nebula was a Supernova explosion of a star 20 times as massive as our own Sun. Estimates are that the star exploded 10,000 to 20,000 years ago. The supernova, had we seen it, would have been brighter to us than Venus. Estimated distance to this nebula is 2,400 light years. edit: That bright star is 52 Cygni and is only 291 light years away.