Imaging telescope or lens: Teleskop-Service ONTC 12" f/5.3
Imaging camera: Atik 383L+ mono
Mount: Losmandy G11
Guiding telescope or lens: Teleskop-Service ONTC 12" f/5.3
Guiding camera: Lodestar
Focal reducer: ASA 2" x0,73 Corrector/Reducer
Integration: 6.9 hours
Avg. Moon age: 7.29 days
Avg. Moon phase: 49.23%
Astrometry.net job: 99280
RA center: 328.362 degrees
DEC center: 47.273 degrees
Pixel scale: 1.205 arcsec/pixel
Orientation: -134.994 degrees
Field radius: 0.335 degrees
Locations: Heimsternwarte, Markgrafneusiedl, Austria
Some processing details
THELI: after data reduction, weighting, outlier rejecection and stacking the Ha and R channel were combined to a new HaR channel according to their bandwidths, whereas the Ha channel was boosted 1.8x. The three resulting HaR, G and B channels were B-V color calibrated and an enhanced noise weighted luminance channel (elum_chisquare) was built from Ha+R+G+B.
Fitswork: The HaR and B channel were multiplied with the factors given from the earlier B-V calibration (G is always 1 and needs not to be touched). Then the RGB combination from HaR, G and B was done. A gentle NLP noise reduction filter was applied to the resulting color image. The elum_chisquare was afterwards used to generate the L+RGB. Finally the object was streched and cropped.
PixInsight: All channels have been histogram transformed, lrgb combined, background neutralized and color calibrated. To smooth the weak regions an ACNR process was applied and finally a HDRMedianTransform was done. Last step was again streching and cropping.
Added 1 hour each to the green and blue channel
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