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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Emission nebula energized by star Xi Persie a.k.a Menkib brightest one closest to the nebula
in the constellation of Perseus ~1000 ly away. Menkib is a blue giant O7 class star ~12700...