Galaxy M100
Galaxy M100, a member of the Virgo Cluster of Galaxies, resides at a distance of 50 million light-years in the constellation Coma
Berenices.  The galaxy extends out quite far beyond the spiral arms...the faint glow is real, and not a processing artifact.  M100 is
surrounded by several small dwarf galaxies.  At the upper right is NGC 4312, a smaller companion spiral galaxy seen end-on.

This image combined 105  luminance exposures using a clear filter with 35 minutes of green and 45 minutes each of red and blue
exposures.  An ST10XME camera was used through a TEC 140mm refractor at my new observatory, as I listened to a little Mozart
night music.
Music:  A Little Night Music - Mozart