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Post date: Apr 08, 2021 11:13:40 AM
This is the NGC3190 group with NGC3185, NGC3187, NGC3189, and NGC3193 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. Imaging was done on March 6, 7, 20 and April 1, 2021 UTC from Buford Mt Conservation Area.
11 Luminance frames x 10 min binned 1x1 and 5 RGB frames x 10 minutes each binned 2x2 for a total exposure of 4 hours 20 minutes. 16 flats, bias and darks frames.
This is an annotated image:
This image is cropped to show the central region:
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