Marcel G.J.
Minnaert

Utrecht (Physics Tree)


Gerard P.
Kuiper

University of Arizona


















Otto
Struve

UC Berkeley




Felix Christian
Klein

Universität Göttingen (Physics Tree)


Johannes Franz
Hartmann

Kuffner-Sternwarte


Richard
Schorr

University of Hamburg


Walter
Baade

Mount Wilson Observatory


Maarten
Schmidt

Caltech (Physics Tree)


Richard Frederick
Green

University of Arizona

Jill Eleanor
Bechtold

University of Arizona
(Options)

Jennifer E.
Scott

University of Arizona

Candido D.
Pinto

University of Arizona

Jill BechtoldX