https://github.com/davepinch/pinchy.cc/blob/master/content/topics/astronomy/catalogs/names/iris-nebula/iris-nebula.md
Iris Nebula (Wikipedia) The Iris Nebula (also known as NGC 7023 and Caldwell 4) is a bright reflection nebula in the constellation Cepheus. The designation NGC 7023 refers to the open cluster within the larger reflection nebula designated LBN 487.
