Individual Members

Professional scientists whose research is directly relevant to some branch of astronomy are eligible for election as Individual Members. Individual Members are, normally, admitted by the Executive Committee on the proposal of a National Member.

Individual Members listed in the IAU Directory have a valid, public email, and are affiliated to at least one Division. They are labeled as "active members". For corrections and updates, please contact

Total number of IAU members:11353. Number of Individual Members in the IAU Directory: 9188

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Name Location NCA adherence
Russo, Guido Italy Italy
Russo, Pedro Netherlands Netherlands
Rust, David M United States United States
Ruszkowski, Mateusz United States United States
Rutledge, Robert E. Canada Canada
Rutten, Renee G.M. Spain Spain
Rutten, Robert J. Netherlands Netherlands
Ruždjak, Domagoj Croatia, the Republic of Croatia, the Republic of
Růžička, Adam Czech Republic Czech Republic
Ryabchikova, Tatiana A. Russian Federation Russian Federation
Ryabov, Boris I. Latvia Latvia
Ryabov, Michael I. Ukraine Ukraine
Ryabov, Yurij A. Russian Federation Russian Federation
Ryabova, Galina O. Russian Federation Russian Federation
Ryan, Sean Gerard United Kingdom United Kingdom
Rybák, Jan Slovakia Slovakia
Rybansky, Milan Slovakia Slovakia
Rybicki, George B. United States United States
Rydbeck, Gustaf H.B. Sweden Sweden
Ryde, Felix M. Sweden Sweden
Ryde, Nils A.E. Sweden Sweden
Ryder, Stuart Australia Australia
Rykhlova, Lidiya V. Russian Federation Russian Federation
Rys, Stanislaw Poland Poland
RYU, Dongsu Korea, Rep of Korea, Rep of
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