2023 DeepSky winner - Western Veil
John Proudlove
Saturday, 8 July 2023
C8, Hyperstar, ASI533MC, IDAS NBZ narrowband filter, CGX mount Gain 103, 521 x 15s exposures
APP vignetting and star calibration, PI Automatic Background Extractor, BlurXTerminator, NoiseXTerminator Too few dark frames, which were also wrongly exposed, but subtracted automatically from the light frames as they were captured (by SharpCap) so the calibration could not be undone. No flat frames were used either, as I realised too late that the ones I already had didn’t match the current camera orientation! The first problem was addressed (reasonably well I think) by NoiseXTerminator, and the second by the APP vignetting tool.