NGC 7023 - Iris Nebula
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Type Location r.a. dec. Size Magnitude Distance
Reflection Nebula Cepheus 21h01.8 +68°12' 18' x 18' 7 1,300 ly

The Iris Nebula, also NGC 7023 and Caldwell 4, is a beautiful reflection nebula in the constellation Cepheus at a distance of about 1,300 light-years. The nebula is lit by a magnitude 7 star, SAO 19158.

 

More from Wikipedia

Date Telescope Binning Exp Time (s) Special processing Notes
July 22, 2002 Centurion
18"
L 1:1
RGB 3:1
L 3x300
R,G,B 300
LRGB, Max Entropy, DDP