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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This photo presents some reflection nebulae in the constellation Corona Australis. At the top there are blue nebulae NGC 6726 and NGC 6727. NGC 6729 is an emission/reflection nebula (th...