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 Solar System/Planetary Sci (7) Exopla (4) Astrobio (3) Astronomy Educa (2) Star Formation & Evolu (2) Active Galactic Nu (1) Clusters of Galaxies/Large-scale Struc (1) Galactic Structure & Stellar Populat (1) Galaxy Formation & Evolu (1) GRBs (1) Supernovae (1) (-) High-Energy Pheno (1) State AB (1) AL (3) AR (1) AZ (2) CA (13) CO (5) CT (3) FL (1) KS (1) KY (2) MA (3) MD (13) ME (1) MI (1) MN (1) NC (2) ND (1) NH (2) NJ (1) NM (3) NY (5) OH (2) OR (1) PA (3) TX (3) UT (1) VA (2) WA (6) WY (1) (-) GA (1) Facet State City Carrollton (1) Facet City Membership Class E (1) Facet Membership Class Division HEAD (4) LAD (2) SPD (1) (-) DPS (1) (-) HAD (1) Facet Division Showing 1-1 of 1 results George Sonneborn E Affiliation NASA's GSFC State/Province GA Country United States