This deep image of M63 http://en.wikipedia.org/wiki/Sunflower_Galaxy represents about 16 hours of total exposure taken over three nights (7, 8, 9 April 2010). As well as the beautiful galaxy of M63 If you look closely numerous faint galaxies are visible in the background

FLT110 @F5.2 on AP900 mount, guided with Megrez 80mm@F7 and DSIproII

Exposure details
30x15 min Lum
12x15 min Red
12x15 min Green
12x15 min Blue

Flats,dark and bias frames

Callibrated and aligned in Maxim DL,post processing in PixInsight and Photoshop CS3E