The “Propeller Nebula” in Cygnus (DWB 118). Imaging notes: 46 x...

The “Propeller Nebula” in Cygnus (DWB 118). Imaging notes: 46 x 300-second exposures, 3nm Ha filter and 48 x 300-sec with the 3nm OIII filter, ZWO ASI1600MM-Pro monochrome camera cooled to -10C, 800mm f/4 Newtonian scope, Sky-Watcher EQ6-R Pro mount, William Optics 32mm/120mm FL guide scope + ZWO ASI290MM-Mini guide camera.  More of my astro stuff here: https://SaltwaterWitch.com