Here is (hopefully) last picture without coma corrector – M101 Pinwheel galaxy. After 30 subexposures weather has broken, and the final picture is stacked with 27 frames, 3 minutes each. M101 has pretty low surface brightness, so it is not an easy target and requires much time to collect decent result. These 27 frames is good for beginning. But corrector is waiting in the drawer, so I will not gather any more photons without it.