Category:NGC 7023

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English: The Iris Nebula, also NGC 7023 and Caldwell 4, is a bright reflection nebula and Caldwell object in the constellation Cepheus.
Iris Nebula 
dark nebula
Wikipedia-logo-v2.svg  Wikipedia
Instance of dark nebula
Discoverer or inventor
Time of discovery or invention
  • 18 October 1794
Distance from Earth
  • 1,435 light-year
Authority control
Blue pencil.svg

Media in category "NGC 7023"

The following 16 files are in this category, out of 16 total.