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 Galaxy Formation & Evolu (1) Heliophy (1) Interstellar Me (1) Solar System/Planetary Sci (1) Star Formation & Evolu (1) (-) Exopla (1) State CA (3) GA (1) MA (1) MD (2) NC (1) NM (1) PA (2) TX (1) (-) NY (1) Facet State City Facet City Membership Class Undergrad Student (1) (-) Full Member (1) Facet Membership Class Division DPS (4) DDA (1) HAD (1) (-) LAD (1) Facet Division Showing 1-1 of 1 results Dmitry Ivanov Full Member Affiliation Columbia University State/Province NY Country United States