16  January  2018


By Ron Brecher
IC 1396 is a large cloud of faintly glowing gas, composed mainly of hydrogen.
 It is a huge object in the sky, with a diameter more than six times that of the Moon.
 That’s because it is both relatively close to us (2,400 light years)
and big (more than 100 light years across).
 The energy that makes the nebula’s gas glow comes from the bright star
 at the centre of the nebula, called HD 206267.
 Moravian G3-16200 EC camera (on loan from O’Telescope), Optolong RGB and 7nm H-alpha filters, Takahashi FSQ-106 ED IV at f/3.6, Paramount MX.
 Acquisition with the SkyX unguided. Focused with FocusMax.
 All pre-processing and processing in PixInsight.
 Acquired from my SkyShed in Guelph.
Nearly full moon, average transparency and poor seeing.
 8x10m R,G and B and 11x20m Ha unbinned frames (total=7hr40m).


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