(click on image formfull size 6.47MB)
PixInsight rejection algorithm artifacts with advanced sigma clipping. (Ok with Winsor rejection)
Initial version: NGC6820 One shot color
Processed : Gradient, color calib., BlurXT, separate star / nebulosity stretch, NoiseXT, combine with luminance stars, final adjust.
(click on image for full size 6.6MB)
Visualizing the effect of combining stars from luminance exposures for more natural star color.
