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Software technique
A demonstration of a technique in a software application
A FITS Liberator tutorial using a RGB image I'd created in AstroArt 5. The image consisted of Light frames: 6 x BR x 600s, 8 x H x 600s, 7 x G x 600s @-20c on my ST8300M.
The tutorial should provide you with a repeatable workflow to process your own images/