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 (9) Exopla (7) Astronomy Educa (5) Galaxy Formation & Evolu (5) GRBs (5) High-Energy Pheno (5) Supernovae (5) Active Galactic Nu (4) Cosmo (4) Galactic Structure & Stellar Populat (3) Interstellar Me (3) Clusters of Galaxies/Large-scale Struc (2) Solar System/Planetary Sci (2) Astrobio (1) (-) Heliophy (2) State (-) NY (2) Facet State City Cedar Rapids (1) Geneseo (1) Iowa City (2) Lockport (1) Mohegan Lake (1) Poughkeepsie (1) Rochester (1) Staten Island (1) (-) New York (2) Facet City Membership Class F (1) Full Member (1) Facet Membership Class Division LAD (1) SPD (1) Facet Division Showing 1-2 of 2 results Michael Hahn F Affiliation Columbia University State/Province NY Country United States Nicholas Luber Full Member Affiliation Columbia University State/Province NY Country United States