NGC 559

NGC 559, also known as Caldwell 8, is an open star cluster in the constellation Cassiopeia. It is located near the open cluster NGC 637, and the bright (magnitude +2.2) irregular variable star γ Cas.

NGC 559 is an evenly distributed spray of faint stars 4' across. It has several dozen 11th and 12th magnitude stars and many more just at the threshold of visibility. The cluster is 4.4' across, and shines at magnitude +9.5. It is about 3700 light years away.