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The Iris Nebula, NGC 7023 and Caldwell 4, is a bright reflection nebula and Caldwell object in the constellation Cepheus.
NGC 7023 is actually a cluster within the nebula, LBN 487, and the nebula is lit by a magnitude +7 star, SAO 19158. Nebula apparent magnitude 6.8
LRGB Image taken 27 & 28 June 2017 from Lockwood Valley, California
Lum 165 minutes 1x binned, 15 min sub-exposures
RGB 75:75:60 minutes 2x binned, 15 min sub-exposures
Total Exposure Time = 6.25 hours
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| Date/Time | 02-Jul-2017 22:49:40 |
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