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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Cat's eye nebula, a.k.a NGC 6543, and Cadwell 6. A planetary nebula in Draco ~ 3000 ly away with a magnitude of 8.1 and high surface brightness. It was the first planetary nebula whose ...