How many confirmed galaxies is the Virgo Cluster known to harbor, according to estimates?
Answer
Over 1,300 confirmed galaxies
The density and sheer number of components define the Virgo Cluster as a massive structure. It is explicitly stated that this gravitationally bound collection is known to harbor over 1,300 confirmed galaxies. This high count is the primary driver of the massive disparity in size and total mass between the cluster and a single galaxy like the Milky Way. The statement emphasizes that these galaxies are not uniform; they vary in type and size, creating a dynamic and complex internal environment within the cluster.

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Is The Milky Way In The Virgo Supercluster? - Physics Frontier
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