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 Astrobio (1) Astronomy Educa (1) Solar System/Planetary Sci (1) Star Formation & Evolu (1) (-) Heliophy (2) State AL (4) AZ (1) CA (12) CO (13) DC (1) FL (2) GA (2) HI (1) IA (1) IN (1) KS (1) MA (5) MD (14) MI (1) NH (1) NJ (2) NM (4) OH (1) OR (1) TX (3) UT (1) VA (7) (-) NY (2) Facet State City Mohegan Lake (1) New York (1) Facet City Membership Class Full Emeritus Member (2) (-) Full Member (2) Facet Membership Class Division DDA (1) DPS (1) HEAD (1) LAD (1) (-) SPD (2) Facet Division Showing 1-2 of 2 results Michael Hahn Full Member Affiliation Columbia University State/Province NY Country United States Joshua Knight Full Member Affiliation State/Province NY Country United States