NGC7023 The Iris Nebula
Scope: Deep Sky Instruments RC10c 254mm @ f/7.4 / FL= 1880mm Corrected Ritchey Chretien
Camera: FLI- ML11002M with FLI (7 position filter wheel CFW-5-7)
Total Exposure: Luminance=(45) 15min subs, 11.3 hrs....Red=(22) 15min subs, 5.5 hrs....Green=(20) 15min subs, 5.0 hrs.....Blue= (20) 15min subs, 5.0 hrs.
July 2013: Chico, California, USA
Comments: The Iris Nebula, is a bright reflection nebula in the constellation Cepheus. NGC 7023 is actually the cluster within the nebula, LBN 487, and the nebula is lit by a magnitude +7 star, SAO 19158. It shines at magnitude +6.8. The nebula lies 1,300 light-years away and is six light-years across.