Style1½ inches thick (3.75 cm) Product Details Artist grade canvas, archival inks, wooden stretcher bars, and UVB protective coating
AvailablityUsually ships within five business days. ArtistWolfgang Kloehr CollectionGalaxies
Description NGC 7635, also called the Bubble Nebula, is a H II region emission nebula in the constellation Cassiopeia . It lies close to the direction of the open cluster Messier 52. The 'bubble' is created by the stellar wind from a massive hot, 8.7 magnitude young central star, the 15 5 M SAO 20575 (BD+60 2522). The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by Friedrich Wilhelm Herschel. The star SAO 20575 or BD+602522 is thought to have a mass of 10-40 Solar masses.