|Jan8-08, 11:10 PM||#1|
any rotating clusters ???
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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