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NGC 7023 The Iris Nebula


From the author of   Sizing Up The Universe

RGB
NGC7023

HaGB
NGC7023

21:03 EDT, September 5, 2010 and 22:13 EDT, September 14, 2010
Starlight Express SXV-H9 on 10" RCOS
Ha = 60 min, R = 60 min, G = 24 min, B = 60 min (in 4 min guided increments),
Richardson-Lucy deconv.

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