The Whale Galaxy, NGC 4631, lies in Canes Venatici. The smaller galaxy above is NGC 4627.
Image Info:
Canon 60D with an Astronomik CLS LPR filter, at the prime focus of the KPO 18″ Reflector. 25 frames of 180 seconds each for a total exposure time of 75 minutes. Captured in Nebulosity, processed in StarTools, and finished in Aperture.