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 Star Formation & Evolu (10) Solar System/Planetary Sci (6) Astronomy Educa (5) Galactic Structure & Stellar Populat (3) Heliophy (2) Astrobio (1) Clusters of Galaxies/Large-scale Struc (1) Cosmo (1) Galaxy Formation & Evolu (1) High-Energy Pheno (1) (-) Exopla (1) (-) GRBs (1) (-) Supernovae (1) State CA (2) Facet State City Pasadena (1) San Ramon (1) Facet City Membership Class AM (2) Amateur Affiliate (2) E (6) ED (1) Educator Affiliate (1) F (17) Full Member (4) GR (13) Graduate Student (7) IA (1) International Affil (2) JR (3) Undergrad Student (5) (-) Full Emeritus Member (2) Facet Membership Class Division HEAD (6) DPS (5) SPD (2) DDA (1) (-) HAD (2) Facet Division Showing 1-2 of 2 results James Breckinridge Full Emeritus Member Affiliation State/Province CA Country United States Cynthia Cheung Full Emeritus Member Affiliation NASA's GSFC State/Province CA Country United States