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 Astrobio (1) Cosmo (1) Heliophy (1) High-Energy Pheno (1) Solar System/Planetary Sci (1) Star Formation & Evolu (1) Supernovae (1) (-) GRBs (1) State GA (1) Facet State City Albuquerque (1) Asheville (1) Baltimore (1) Calgary (1) Cambridge (2) Corvallis (1) Delanco (1) Durham (1) Ewing (1) Gainesville (1) Los Alamos (1) Los Angeles (1) Madison (1) Mississippi State Univ. (1) Newark (1) North Branford (1) Oxford (1) Palos Verdes Estates (1) Port Orchard (1) Sandia Park (1) San Diego (1) San Ramon (1) Sparks (1) Stanford (1) Toledo (1) Washington (1) Windermere (1) Winthrop (1) (-) Carrollton (1) Facet City Membership Class Full Member (2) (-) Full Emeritus Member (1) Facet Membership Class Division DPS (1) HAD (1) Facet Division Showing 1-1 of 1 results George Sonneborn Full Emeritus Member Affiliation NASA GSFC State/Province GA Country United States