Iris Nebula

7.1 may

18 ' × 18'

Cr 429 · 139 · Caldwell vdB 4

NGC 7023 is the name of the iris nebula containing the open cluster in the constellation Cepheus by Nomenclature of the NGC catalog. NGC 7023 has an angular extent of 18 ' x 18'. The Iris Nebula is a reflection nebula, which is from a central star of apparent magnitude 7.1 may be enlightened.

NGC 7023 was discovered on 18 October 1794 by Sir William Herschel.

Hubble mosaic of multiple shots

Full List

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• Cepheus ( constellation )