Organization Lick Observatory

United States Naval Observatory

Washburn Observatory

University of Wisconsin

University of California

Astronomical Society of the Pacific

United States Military Academy

American Astronomical Association

International Astronomical Union

Berkeley Radiation Laboratory

National Radio Astronomy Observatory, Green Bank, West Virginia

Kitt Peak National Observatory (asst. director, research astronomer)

University of Arizona, American Indian Science and Engineering Society (faculty advisor)

Keck Observatory

Max Planck Institute for Astronomy

International Astronomical Union

University of California, Santa Cruz

Kitt Peak National Observatory

University of California, Berkeley

Space Telescope Science Institute

Johns Hopkins University

International Astronomical Union

American Astronomical Society

University of California, Santa Cruz

University of California Observatories

Carnegie Observatories

Sigma Xi Society