page_title: Iris Nebula
hierarchical_section_title: Iris Nebula
caption_attribution_description: English: Iris Nebula LBN 487 and NGC 7023 in Cepheus
context_page_description: The Iris Nebula 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.
  The nebula, which shines at magnitude +6.8, is illuminated by a magnitude +7.4 star designated SAO 19158. It is located near the Mira-type variable star T Cephei, and near the bright magnitude +3.23 variable star Beta Cephei. It lies 1,300 light-years away and is six light-years across.
context_section_description: 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.
  The nebula, which shines at magnitude +6.8, is illuminated by a magnitude +7.4 star designated SAO 19158. 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.
caption: Iris Nebula (NGC 7023 and LBN487)
exif: {"Image XResolution": "100", "Image YResolution": "100", "Image ResolutionUnit": "Pixels/Inch"}