Abell 39, Hercules

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object Abell 39, planetary nebula
constellation Hercules
equipment ASA Astrograph 10" at f/2,8, Astro modified Canon EOS 40D
exposure 48 x 300 sec at 800 ASA unguided
date Apr 8, 2010 Engelhardsberg Germany
conditions stars to 5m5
image processing DeepSkyStacker 3.3.2, Photoshop CS4, PixInsight 1.6
remarks