NGC 7635, also known as the Bubble Nebula, Sharpless 162 or Caldwell 11 is an emission nebula in the constellation Cassiopeia. The 'bubble' is created from the stellar wind of the massive young central star SAO 20575. It was discovered in 1787 by William Herschel.

Image Capture Details:

16x900s each SII, Ha and OIII. Processed in SHO.
Telescope - PlaneWave 12.5" CDK
Mount - iOptron CEM120EC2
Camera - ZWO ASI2600MM
RA 23hrs 20' 48"
DEC +61degrees 12' 06"
Position Angle (CCW) - 05 degrees
Guide Star - TYC4279-1975-1 / mag 9.06
Location - Calgary Alberta
Date - November 2023
Constellation - Cassiopeia
Distance - 9,000 lightyears

Processed in ImagesPlus, PixInsight and PhotoShop