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 Active Galactic Nu (1) Astronomy Educa (1) Galaxy Formation & Evolu (1) State Facet State City Cambridge (1) Liberty (1) Facet City Membership Class F (2) Full Member (2) Facet Membership Class Division Facet Division