M100 is a classic, grand design, face-on spiral galaxy. It lies about 55 million light-years from Earth and is a member of the Virgo Cluster of galaxies, being one of it's largest members. It is difficult to image process because of its wide dynamic range. The spiral arms are faint and it has a tiny bright core. Exposures: L:R:G:B:=250:80:80:80minutes=8 hours 10 minutes total exposure at f/8.3.

This image was published in the January, 2018 issue of Astronomy magazine.