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Post date: Dec 25, 2020 1:48:15 AM
IC5146 the Cocoon Nebula imaged on November 7 and December 5, 2020 through a 200 mm aperture, 730 mm focal length F/3.65 Boren-Simon PowerNewton Astrograph with 0.73x focal reducer and coma corrector. The imaging camera was a QSI683wsg-8 with Astrodon II filters and cooled to -15C, with off-axis guiding. The system was mounted on a Losmandy G11G2 equatorial head on a permanent pier. The system was controlled with Sequence Generator Pro and PHD2 and the image was processed in PixInsight.
14 Luminance frames x 10 min binned 1x1 and 5 RGB frames x 10 minutes each binned 2x2 for a total exposure of 4 hours 50 minutes. 16 flats, bias and darks frames.
This is a crop highlighting the central region:
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