M106 – Click Image to Enlarge

M106, aka NGC 4258, is a spiral galaxy in Canes Venatici, almost 25 million light years away and about 135,000 light years in diameter. 

Technical details:

16″ RCOS with SBIG STL11K on a Paramount ME at New Mexico Skies from 2006 — one of the very early images from SSRO. It includes 10 hours Lum, 5 hours Ha, and 3 hours/channel RGB.