M106 (NGC 4258 and others) is a large spiral galaxy located approximately 25 million light-years away in Canes Venatici.
NGC 4248 is the companion galaxy at the top right. It is also located approximately 25 million light-years away.
Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
360 minutes total exposure – 6 hours
Imaged February 3rd, 11th, 16th and 29th, 2016 from Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
LRGB - https://www.flickr.com/photos/dcrowson/26116793415/sizes/l