NGC 7023 The Iris Nebula
From the author of Sizing Up The Universe
RGB
22:52 EDT, August 3, 2016
Starlight Express SXV-H9 on 10" RCOS
Hα = 60 min,
R = 30 min, G = 30 min, B = 30 min (in 5 min guided increments),
Richardson-Lucy deconv.
21:03 EDT, September 5, 2010 and
22:13 EDT, September 14, 2010
Starlight Express SXV-H9 on 10" RCOS
Hα = 60 min,
R = 60 min, G = 24 min, B = 60 min (in 4 min guided increments),
Richardson-Lucy deconv.