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 (2) Cosmo (1) Galactic Structure & Stellar Populat (1) State NY (1) Facet State City Evanston (1) Urbana (2) Facet City Membership Class Full Member (4) Facet Membership Class Division Facet Division