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 Astronomy Educa (1) Clusters of Galaxies/Large-scale Struc (1) Cosmo (1) Galaxy Formation & Evolu (1) State Facet State City Baltimore (1) Elkton (1) Greenbelt (1) Johnson City (1) San Marcos (1) Facet City Membership Class Facet Membership Class Division Facet Division