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 Cosmo (3) Galaxy Formation & Evolu (3) Astronomy Educa (2) Clusters of Galaxies/Large-scale Struc (2) Star Formation & Evolu (2) Active Galactic Nu (1) Galactic Structure & Stellar Populat (1) GRBs (1) Interstellar Me (1) Supernovae (1) (-) High-Energy Pheno (1) State GA (1) Facet State City Albuquerque (2) Alexandria (1) Ames (1) Amherst (1) Ann Arbor (3) Arecibo (1) Asheville (1) Ashland (1) Atlanta (3) Austin (2) Baltimore (4) Bangalore, Karnataka (1) Berkeley (2) Bethesda (1) Black Hawk (1) Bloomington (1) Boulder (7) Brea (1) Calgary (1) Cambridge (7) Campbell (1) Chapel Hill (1) Chestnut Hill (1) Chevy Chase (1) Chicago (2) Clemson (1) College Park (1) Columbus (3) Corvallis (2) Davis (1) Delanco (1) Durham (1) Eaton (1) Ewing (1) Fairfax (1) Flagstaff (1) Gainesville (2) Geneseo (1) Göttingen (1) Grand Forks (1) Grand Marais (1) Hanover (3) Hebron (1) Heidelberg (1) Hicksville (1) Honolulu (1) Hyattsville (1) Ithaca (2) La Canada (1) La Crescenta (1) La Jolla (1) Laramie (1) Las Cruces (1) London (2) Los Alamos (1) Los Angeles (7) Lowell (1) Madison (3) Melbourne (3) Minneapolis (1) Mississippi State Univ. (1) Morgantown (2) Nashville (1) Newark (2) New Haven (2) Newville (1) New York (1) North Branford (1) Oslo (1) Ottawa (1) Oxford (1) Palos Verdes Estates (1) Parker (1) Pasadena (5) Plattsburgh (1) Portland (1) Port Orchard (1) Portsmouth (1) Princeton (1) Provo (2) Rancho Mirage (1) Ruston (1) Salt Lake City (1) San Antonio (1) Sandia Park (1) San Diego (1) San Francisco (1) San Jose (1) San Marcos (1) San Mateo (1) San Ramon (1) Santa Fe (1) Seattle (4) Sendai (1) Sparks (1) Stanford (1) Staten Island (1) Toledo (1) Toronto (1) Tucson (5) University Park (1) Urbana (1) Vancouver (1) Washington (3) Watsonville (1) Williamsburg (1) Windermere (1) Winthrop (1) Woodside (1) (-) Carrollton (1) Facet City Membership Class Full Member (1) (-) 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