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 Astronomy Educa (1) Clusters of Galaxies/Large-scale Struc (1) Cosmo (1) Exopla (1) Galactic Structure & Stellar Populat (1) Galaxy Formation & Evolu (1) Solar System/Planetary Sci (1) State Facet State City Arlington (1) Baltimore (1) Pasadena (2) Pittsburgh (1) Silver Spring (1) Tucson (1) Washington (1) Facet City Membership Class Facet Membership Class Division HEAD (2) HAD (1) Facet Division