Individual and Junior Members

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

Junior scientists who have completed their PhD studies between 2015 and 2020 and who are in the initial phase of the career of a professional researcher in some branch of astronomy or a related field may be admitted to the Union by the Executive Committee as Junior Members, for a period not exceeding 6 years.

Individual and Junior 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 Any members remaining Inactive for more than 3 years will be removed from the IAU lists.

Additionally, while only Active Members are listed in the IAU Directory, you may still search for Active, Inactive or Deceased Members in the search field to your right.

Total number of IAU Individual and Junior members: 14043 (of which 719 Junior members). Number of Active Individual and Junior Members in the IAU Directory: 11601.


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Name Location▼ NCA adherence
Rossi, Elena Maria Netherlands Netherlands
Rab, Christian (Junior Member) Netherlands Netherlands
Raassen, Ion Netherlands Netherlands
Russo, Pedro Netherlands Netherlands
Rybak, Matus (Junior Member) Netherlands Netherlands
Rottgering, Huub Netherlands Netherlands
Rutten, Robert J. Netherlands Netherlands
Rowlinson, Antonia Netherlands Netherlands
Roelfsema, Peter Netherlands Netherlands
Ribeiro, Bruno R. L. (Junior Member) Netherlands Netherlands
Rattenbury, Nicholas James New Zealand New Zealand
Rouppe van der Voort, Luc H.M. Norway Norway
Riemer-Sorensen, Signe Norway Norway
Reyes, Rafael Carlos Peru Peru
Rudak, Bronisław Poland Poland
Różyczka, Michal Poland Poland
Rompolt, Bogdan Poland Poland
Rosińska, Dorota Helena Poland Poland
Roukema, Boudewijn F. Poland France
Różańska, Agata Poland Poland
Ratajczak, Milena (Junior Member) Poland Poland
Rudawy, Paweł Poland Poland
Ryś, Stanisław Poland Poland
Rojas-Ayala, Bárbara Portugal Portugal
Roos-Serote, Maarten C. Portugal Portugal
Ryabchikova, Tatiana A. Russian Federation Russian Federation
Rodin, Alexander E. Russian Federation Russian Federation
Rudnitskij, Georgij M. Russian Federation Russian Federation
Rastorguev, Alexey S. Russian Federation Russian Federation
Rastegaev, Denis Aleksandrovich Russian Federation Russian Federation
Reshetnikov, Vladimir P. Russian Federation Russian Federation
Rodionova, Zhanna F. Russian Federation Russian Federation
Romanyuk, Iosif I. Russian Federation Russian Federation
Romanov, Andrey M. Russian Federation Russian Federation
Ryabov, Yurij A. Russian Federation Russian Federation
Ryabova, Galina O. Russian Federation Russian Federation
Rykhlova, Lidiya V. Russian Federation Russian Federation
Razdoburdin, Dmitry N (Junior Member) Russian Federation Russian Federation
Rybák, Ján Slovakia Slovakia
Rusin, Vojtech Slovakia Slovakia
Romero-Colmenero, Encarnacion South Africa South Africa
Ray, Subharthi South Africa South Africa
Rijsdijk, Case South Africa South Africa
Ramphul, Rajin Anand (Junior Member) South Africa South Africa
Rafieferantsoa, Mika (Junior Member) South Africa Madagascar
Roca Cortés, Teodoro Spain Spain
Ruiz-Lapuente, María Pilar Spain Spain
Ribas, Ignasi Spain Spain
Rodriguez-Pacheco Martin, Javier Spain Spain
Rodríguez Berlanas, Sara (Junior Member) Spain Spain
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