Veil Nebula West, NGC6960, in H alpha


I had hoped that this would be the first image in a mosaic of H alpha - OIII, but it's not up to standards - focus was iffy, 1000 second exposures are not quite enough to bring out detail, there was a strong background gradient from moonlight, and it may even suffer from field rotation - an issue I've never had before. So this will be replaced at the first opportunity.

South of Foymount, Ontario; June 18, 2011, 11 PM - 3:20 AM; seeing good, transparency excellent. Parsec 8300M with H-alpha filter on TV-85 at f/5.6; guided; 15x1000s exposures.



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