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Cygnus Loop Ha & OIII wide-field

Gina

By Gina
in Imaging - Deep Sky

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Gina

Gina

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Posted

Got a nice collection of Ha subs last night and some rather poorer OIII ones. PHD decided to play up after doing the Ha and I had to do the OIII with shorter subs without guiding. The Ha was 24 lights of 300s at ISO 3200 and 10C with the 200mm lens stopped down to f5.6 - the OIII was 31 lights of 90s at ISO 3200 and 10C and the lens wide open at f3.5. The Ha seems acceptable but the OIII definitely needs more data. Have to wait a week or so for the next clear night for that...

Next thing is to try to remember how to map the Ha and OIII to the RGB channels :D

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