Created by the stellar wind of its central star NGC7635, aka “The Bubble Nebula” is an emission nebula in the constellation Cassiopeia at a distance of 11,000 light-years. The Bubble appears small, but looks are deceiving as it spans a diameter of ~10 light-years. At the bottom left of the image is the star cluster Messier 52 whose distance is estimated to be between 3,000 – 7,000 light-years. http://owlmountainobservatory.com https://www.facebook.com/OwlMountainObservatory