NGC 7635

NGC 7635, also bubble nebula ( engl. Bubble Nebula ) called, is an emission nebula and HII region in the constellation Cassiopeia, which is about 7100 light years away from Earth. It is located in the vicinity of the open cluster Messier 52 The term comes from a bubble by the solar wind of a Wolf -Rayet star with the designation BD 60 2522 (SAO 20575 ) was created. The star has the brightness of 7.8 mag.

NGC 7635 was discovered on November 3, 1787 by the German - British astronomer William Herschel.