The Omega Centauri globular cluster in the constellation of Centaurus. At a distance of 17090 light-years, this is the largest and most massive known globular cluster in the Milky Way.
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NGC 4755 is an open cluster in the constellation Crux, the Southern Cross. It is known as both the Jewel Box and the Kappa Crucis cluster.
This cluster is one of the finest objects d...