Once a prospering and bright dot in the sky, only a faint cloud is remaining of it now. About 4500 BC, a gigantic star much more massive than our Sun exploded in a huge explosion, a supernova. The leftover is a relatively bright stellar ghost, a supernova remnant, called the Veil nebula. There are multiple brighter parts, this one being known as the Eastern Veil nebula, designated NGC6995.
150/600 Newton, Canon 350D, 4484s total exposure time, ISO1600, Data: Marián Mičúch