23 x 5 minute exposures of the Sadr Butterfly nebula captured with AstroDMx Capture through a William Optics 81 mm ED APO refractor with an Altair Hypercam 533C 14 bit OSC CMOS camera with an Altair quadband filter. Stretched with unlinked channels.
The data were debayered, calibrated, stacked and SpectroPhotometric Color Corrected and stars removed in PixInsight; post processed in the Gimp 2.10, Background extraction, initial denoising and stretching in GraXpert and SetiAstro's Cosmic Clarity for sharpening and final denoising.
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