Definitions for "Supercluster"
An enormous chain of galaxies linked by their mutual gravity. Superclusters look as if they ride on the surfaces of bubbles. Our galaxy is a peripheral member of the Virgo Supercluster, centered around a giant elliptical galaxy M87. Luminous matter does not bind this cluster: Dark matter outweighs luminous matter 10 to 1. Our galaxy seems to be drifting toward the Virgo Supercluster at about 250 km/s.
An enormous chain of clusters of galaxies linked by their mutual gravity. Superclusters look as if they ride on the surfaces of bubbles. Our galaxy is a peripheral member of the Virgo Supercluster, centered around a giant elliptical galaxy M87. Our galaxy seems to be drifting toward the Virgo Supercluster at about 250 km/s. The gravity that binds the superclusters together is not luminous, but dark matter; in the Virgo Supercluster, there is ten times more dark matter than luminous matter.
A collection of clusters of galaxies.