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 Star Formation & Evolu (3) GRBs (2) High-Energy Pheno (2) Solar System/Planetary Sci (2) Supernovae (2) Active Galactic Nu (1) Astrobio (1) Exopla (1) Galactic Structure & Stellar Populat (1) Heliophy (1) Interstellar Me (1) State Facet State City Alexandria (1) Arnold (1) Baltimore (17) Bethesda (1) Catonsville (1) Columbia (1) Elkton (1) Ellicott City (2) Gaithersburg (2) Germantown (1) Greenbelt (6) Laurel (6) Marriottsville (1) Philadelphia (1) Potomac (1) San Marcos (1) Severna Park (1) Tempe (1) Washington (2) Facet City Membership Class Facet Membership Class Division Facet Division