M33 is a spiral galaxy 3million light-years from earth
Telescope Rc Astrosib 20" f/2.8,camera FLI Kepler 4040 cmos each Frame=3mn at -20°C
Ha OIII RGB color Total=20h03mn
The skyX + Pixinsight
From Fregenal de la sierra(Spain) in remote on october 2019
www.georges-chassaigne.fr