Sunday, August 3, 2014

NGC 7023 -- the Iris Nebula.

Locate in the constellation Cepheus, NGC 7023 is a star cluster within the nebula LBN 487. The nebula is lit by a magnitude +7 star, SAO 19158. (Stars are rated on a scale from -1.0 to +10.0, which means SAO 19158 is very bright.) The Iris Nebula is 1,300 light-years away, and is six light-years across.


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