Michael Pusatera, Astronomical Society of Eastern Missouri
North America Nebula
NGC is an emission nebula in Cygnus. Also designated Caldwell 20, it has low surface brightness, is located 1600 light-years away, and appears near one of the summer triangle stars, Deneb.
William Optics GTF 81, CCD: QHY9MS; Autoguider: ZWO ASI120MM; Mount: Orion Atlas EQ-G; Filters: Baader LRGB
4 hour integration time; Luminance: 12x600s; RGB: 8x300s each; Guiding with PHD2; Acquisition with Sequence Generator Pro; Integration and processing with PixInsight 1.8