This is a stack of all exposures (some 80 minutes worth) of the Alnitak area of Orion's belt containing the Flame/HorseHead nebulae. Data was acquired with a Sony A77 MKII Milc camera filtered with an Astronomik CCD City Light Suppression filter at the prime focus of an Altair EDF60 doublet refractor driven by an AstroTrac. The subs taken were 13 x 2 minute, 13 x 3 minutes and 3 x 5 minute exposures at ISO 1,000 with dark frame correction applied. The images were stacked and processed entirely in Affinity Photo.
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Chris Bowden
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