celestial objects

NGC 7023

LRGB 180 60 60 60

Tele Vue NP 127fli

ASA DDM 60 Pro

FLI ML 16200

 

Constellation Cepheus

Ra 21:01:36.90

Dec +68:09:48.0

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.

NGC 7023

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