NGC 4631 and NGC 4656


object galaxies NGC 4631 (the whale), NGC 4656 (hockey stick)
constellation Canes Venatici, the hunting dogs
equipment ASA Astrograph 10" at f/2,8, Astro modified Canon EOS 40D
exposure 24 x 300 sec at 800 ASA unguided
date Apr 5, 2010 Engelhardsberg Germany
conditions stars to 5m2, some clouds
image processing DeepSkyStacker 3.3.2, Photoshop CS4, PixInsight 1.6