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Cygnus Loop in Bi-colour.


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This is the information on this image :-

Ha and OIII combined HOO > RGB. Processed in PixInsight and GIMP. 2h Ha plus 2h OIII integration time captured concurrently on my dual imaging rig. ASI1600MM-Cool cameras set to unity gain, Astrodon 3nm NB filters and Asahi (Pentax) SuperMultiCoated Takumar 200mm f4 lenses.

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