Member Directory The AAS maintains a membership directory to facilitate member interaction and to support the conduct of official Society business. Search directory for: Filter Results By Clear Filters Type of Science Galaxy Formation & Evolu (4) Active Galactic Nu (2) Clusters of Galaxies/Large-scale Struc (1) Cosmo (1) Exopla (1) Interstellar Me (1) Star Formation & Evolu (1) State Facet State City Facet City Membership Class Facet Membership Class Division Facet Division