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 Facet State City Mt Prospect (1) Urbana (1) Facet City Membership Class Full Member (3) Facet Membership Class Division Facet Division