NGC 7635 [SEP] constellation
NGC 7635
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an 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, 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
a binary with a supernova remnant, for a few million years before it also explodes as a supernova, probably a type Ib. Massive stars at SMC metallicity may produce a low luminosity supernova, or even collapse directly to a black hole without a visible explosion.
See also.
- Bubble Nebula (NGC 6822)
- Bubble Nebula (NGC 7635)
- Large Magellanic Cloud