any rotating clusters ???

smallphi

Are there examples of globular clusters (of stars) or clusters/superclusters (of galaxies) that are rotating around their center?

As you know spiral galaxies are all rotating. I've never heard of rotating cluster so I was wondering if those are not observed and if that is the case, why rotation is observed in galaxies but not in clusters?

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smallphi	any rotating clusters ??? Tweet Are there examples of globular clusters (of stars) or clusters/superclusters (of galaxies) that are rotating around their center? As you know spiral galaxies are all rotating. I've never heard of rotating cluster so I was wondering if those are not observed and if that is the case, why rotation is observed in galaxies but not in clusters?