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 (2) Astronomy Educa (1) State Facet State City Baltimore (12) Bethesda (2) Boulder (2) Catonsville (1) Chevy Chase (1) College Park (4) Crownsville (1) Derwood (1) Ellicott City (1) Fairfax (1) Germantown (1) Greenbelt (17) Hyattsville (1) Laurel (4) Marriottsville (1) Potomac (1) Silver Spring (3) Towson (1) Washington (4) Facet City Membership Class Facet Membership Class Division Facet Division