Home Image Gallery Clusters Galaxies Lunar Nebulae Solar System Sun
Date/Location August 21 & 23, 2020 Jubilee College State Park, Illinois
Camera and Settings SBIG ST-2000XCM CCD camera -10°C
Telescope 8-inch f/8 Ritchey–Chrétien Cassegrain (with a Televue 0.8x focal reducer/field flattener yielding f/6.4)
Mount Paramount MyT
Exposure 180 min (18 x 10 min)
Processing CCDOpts, Image Plus 6.5, Photoshop CS6
Other Magnitude 6.9; Constellation Cassiopeia; 15.0 x 8.0 arc minutes in size.
NGC7635 The Bubble Nebula
IScroll down to bottom of image for a detailed description.