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Added 5 more hours of H-Alpha to my previous shot. In all it is 15x20min. plus 11x15min. Still color did not work out for me. Probably just very little data in B and G channels.

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Comment by Ian G on March 14, 2012 at 6:03am

Thank you, Marc! At first I was sort of disappointed, because it did not seem to make a big difference. But the background is finally quieted. And those 20 min. exposures bring some (not a lot) of additional detail.

Comment by Marc Basti on March 13, 2012 at 7:22pm

Ian, that 5hrs really smoothed out the background and brought out the detail. Nice, Marc

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