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 Galactic Structure & Stellar Populat (1) State Facet State City Amherst (1) Cambridge (3) Hanover (1) Hubbardston (1) Lexington (1) Lowell (1) Facet City Membership Class Facet Membership Class Division Facet Division