NGC 7635 Bubble Nebula - Close-up An Emission Nebula located in the constellation of Cassiopeia This is a Tri-color Narrow Band Image using the Hubble color palette. Data was taken in August 2020 from Newbury Park, California Ha 250 minutes 1x binned, 15 & 20 min sub-exposures OIII 330 minutes 1x binned, 15 & 20 min sub-exposures SII 220 minutes 1x binned, 20 min sub-exposures Total Exposure Time = 13 hours 20 min Camera: SBIG STT-8300, Scope: Celestron C11 Edge HD at f/10,Mount: AP1200 GTO Off-Axis Guided with SBIG Self-Guiding Filter Wheel