Bubble Nebula (NGC 7635, Sh2-162, Caldwell 11)

by Gary Lopez FRAS

Objects in field: Bubble Nebula, NGC 7635, LBN 548, LBN 549, Sh2-162

Equipment: ZWO ASI1600MM Pro

Integration: 13h 48m

Located in the constellation, Cassiopeia, the Bubble Nebula was created by stellar winds from the massive, hot star, SAO 20575. The bubble shape is made visible because the energy from the star causes the matter in surrounding molecular cloud to glow. I collected the data for this image over a month-long period in December 2020 and January 2021. I enjoyed pretty good seeing, with nearly all of…