Iris Nebula

Among its peers, this magnificent blue nebula stands out. The Iris Nebula is a prominent reflection nebula in contrast to the majority of the nebulae that can be seen in the night sky. In the heart of the nebula is a massive star named HIP 103763 (also known as HD 200775). It is situated in the Cepheus constellation and is located 12,980.10 light years from Earth. The nebula is listed as Caldwell 4 in the Caldwell catalogue of deep-sky objects and NGC 7023 in the New General Catalogue. The open star cluster NGC 7023 that is correlated to the nebula is known by the name NGC 7023; the nebula itself is known by the names LBN 487 or DB 139.
== Images ==
File:Iris Nebula-001.jpg
File:Iris Nebula-002.jpg
File:Iris Nebula-003.jpg
File:Iris Nebula-004.jpg
File:Iris Nebula-005.jpg
Category:Real objects
Category:Objects
Category:Nebulae