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) Heliophy (1) Solar System/Planetary Sci (1) Star Formation & Evolu (1) (-) Exopla (1) State Facet State City Calgary (1) Pasadena (1) Seattle (1) Sparks (1) University Park (1) (-) Heidelberg (1) Facet City Membership Class (-) Full Emeritus Member (1) Facet Membership Class Division (-) SPD (1) Facet Division Showing 1-1 of 1 results Peter Ulmschneider Full Emeritus Member Affiliation State/Province Country Germany