Double cluster in Perseus

by: A.Fujii/David Malin Images/Novapix
Reference: a-aou08-69008
Date: 2007-04-10

The double cluster in the constellation Perseus, normally known by its Greek designation transliterated. chi Persei (NGC 884, on the left) and h Persei (NGC 869) are about 7000 light-years away and less than 100 light-years apart. Although open clusters are quite common, this pair is exceptional due to the large number of young bright O and B stars in each, and their closeness. This skyview is corresponding to binoculars and small telescopes.

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