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 Active Galactic Nu (1) Clusters of Galaxies/Large-scale Struc (1) Cosmo (1) Galaxy Formation & Evolu (1) State NM (1) Facet State City Amherst (1) Annapolis (1) Baltimore (20) Bern (1) Boulder (1) Cambridge (1) College Park (4) Elkton (1) Ellicott City (1) Germantown (1) Greenbelt (15) Hampstead (1) Laurel (3) Marina (1) Marriottsville (1) Potomac (1) San Marcos (1) Silver Spring (1) Tucson (1) Washington (4) Facet City Membership Class Facet Membership Class Division Facet Division