NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. The Bubble Nebula in 4K
Dome image with Meade 16″ LX200 @ f6.3, ZWO ASI071 MC Pro, OPT Triad filter, Starizona SCT corrector IV, Innovation Foresight ONAG, Sbig St-i guider, 16.5 hours on 10/28/2022 at Gilbert, AZ. Processed in Pixinsight and Photo Shop.