This is an interesting and very active galaxy in the constellation of Canes Venatici. Close by is NGC 4627 a dwarf elliptical companion galaxy and to the lower left the large edge on spiral galaxy NGC 4656 (discovered by Wiliam Herschel in 1787), that has been significantly distorted through interaction with its large neighbor NGC 4631. Read more here http://en.wikipedia.org/wiki/NGC_4631

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

Exposure details
13x15 min Lum
4x15 min Red
4x15 min Green
4x15 min Blue

Flats,dark and bias frames

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