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 (2) Star Formation & Evolu (2) Astrobio (1) Exopla (1) High-Energy Pheno (1) Supernovae (1) (-) Solar System/Planetary Sci (2) (-) GRBs (1) State CO (1) IA (1) MA (1) TX (1) (-) CA (2) Facet State City Pasadena (1) San Ramon (1) Facet City Membership Class E (3) ED (1) F (2) Full Member (1) GR (4) Graduate Student (1) JR (1) Undergrad Student (1) (-) Full Emeritus Member (2) Facet Membership Class Division DPS (6) DDA (1) HEAD (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