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) Exopla (1) GRBs (1) Solar System/Planetary Sci (1) Supernovae (1) (-) High-Energy Pheno (1) State GA (1) Facet State City Calgary (1) Corvallis (1) Grand Forks (1) Hanover (1) Los Angeles (1) Lowell (1) Salt Lake City (1) San Ramon (1) Woodside (1) (-) Carrollton (1) Facet City Membership Class (-) Full Emeritus Member (1) Facet Membership Class Division HAD (1) (-) DPS (1) Facet Division Showing 1-1 of 1 results George Sonneborn Full Emeritus Member Affiliation NASA GSFC State/Province GA Country United States