Iris nebula facts for kids
Iris Nebula (NGC 7023 and LBN487)
|Observation data: J2000.0 epoch|
|Right ascension||21h 01m 35.60s|
|Declination||+68° 10′ 10.0"|
|Apparent magnitude (V)||6.8|
|Apparent dimensions (V)||18' x 18'|
|Designations||NGC 7023 and LBN487, Caldwell 4|
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.
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Iris nebula Facts for Kids. Kiddle Encyclopedia.