Large-scale dynamics Since the late 1980s it has been apparent that not only the Local Group, but all matter out to a distance of at least 50 Mpc is experiencing a bulk flow on the order of 600 km/s in the direction of the Norma Cluster (Abell 3627). Lynden-Bell et al. (1988) dubbed the cause of this the "Great Attractor". The Great Attractor is now understood to be the center of mass of an even larger structure of galaxy clusters, dubbed "Laniakea", which includes the Virgo Supercluster (including the Local Group) as well as the Hydra-Centaurus Supercluster, the Pavo-Indus Supercluster, and the Fornax Group.
Large-scale dynamics Since the late 1980s it has been apparent that not only the Local Group but all matter out to a distance of at least 50 Mpc is experiencing a bulk flow on the order of 600 km/s in the direction of the Norma Cluster (Abell 3627) Lynden-Bell et al (1988) dubbed the cause of this the "Great Attractor" The Great Attractor is now understood to be the center of mass of an even larger structure of galaxy clusters dubbed "Laniakea" which includes the Virgo Supercluster (including the Local Group) as well as the Hydra-Centaurus Supercluster the Pavo-Indus Supercluster and the Fornax Group