M101 Pinwheel Galaxy

The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy 21 million light-years (6.4 megaparsecs) away from Earth in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781 and was communicated that year to Charles Messier, who verified its position for inclusion in the Messier Catalogue as one of its final entries.

 

EQ6R-Pro Mount

Skywatcher 150PDS

ZWO 2600MC camera cooled to -10c

ASIAIR Pro, ZWO mini guide scope and camera

Optolong L-Pro filter

Bortle 6

 

134 x 120 second exposures for a total of 4 hours 28 mins

 

Stacked and processed in Pixinsight

Done