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Nebulae NGC 7023 THE IRIS NEBULA |  | (CLICK REFRESH ON YOUR BROWSER IF IT DOESN'T APPEAR)
Equipment and exposition:
GSO RC 8" F/8
ATIK 383L+ with Orion Nautilus Usb filter wheel, Astronomik Filters 50,8
Guided with Starlight Lodestar with Orion OAG
Neq6 Geoptik Modded
L : 6 X 700 Secs. bin 1x
RGB : 3 x 700 Sec.s (Each channel) bin 1x
Processed with PixInsight ,Maximdl,Photoshop CS4
SIte : Saint-Barthelemy, Nus, Aosta Italy 04/05/2011
FULL SIZE
About this object:
The Iris Nebula, also NGC 7023 and Caldwell 4, is a bright reflection nebula and Caldwell object 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. It is located near the Mira-type variable star T Cephei, and near the bright magnitude +3.23 variable star Beta Cephei (Alphirk). It lies 1,300 light-years away and is six light-years across.
Bibliography: NASA/Wikipedia |
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