24.4.17

pinwheel 101

Méchain first reported this galaxy on 27 March 1781 and it was included in Messier's catalogue. 21 million light years away, large but dim....
spiral galaxy m101 the pinwheel  in ursa major
700d + pn208   best of 34 x 240s @ ISO800

I also had a go at DSS's confusingly named drizzle and custom rectangle routines. No idea how it works, but this is what it does. It seems to get you closer...