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 State (-) AZ (2) Facet State City Green Valley (2) (-) Tucson (2) Facet City Membership Class Div Affil - HAD (1) E (4) F (6) Full Member (2) GR (1) JR (1) (-) Full Emeritus Member (2) Facet Membership Class Division DPS (2) SPD (2) DDA (1) LAD (1) (-) HAD (2) Facet Division Showing 1-2 of 2 results Helmut Abt Full Emeritus Member Affiliation NSF's NOIRLab State/Province AZ Country United States William David Arnett Full Emeritus Member Affiliation State/Province AZ Country United States