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 Galactic Structure & Stellar Populat (1) GRBs (1) High-Energy Pheno (1) Interstellar Me (1) Star Formation & Evolu (1) (-) Supernovae (1) State (-) GA (1) Facet State City Alexandria (1) Athens (1) Columbus (1) Rochester (1) (-) Carrollton (1) Facet City Membership Class 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