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.

For gender statistics click here.

Total number of IAU Individual and Junior members: 12738 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12372.


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Name Location NCA adherence▼
Roos-Serote, Maarten C. Portugal Portugal
Rojas-Ayala, Bárbara Portugal Portugal
Reshetnikov, Vladimir P. Russian Federation Russian Federation
Rostopchina, Alla Ukraine Russian Federation
Rodin, Alexander E. Russian Federation Russian Federation
Romanyuk, Iosif I. Russian Federation Russian Federation
Ryabchikova, Tatiana A. Russian Federation Russian Federation
Razdoburdin, Dmitry N (Junior Member) Russian Federation Russian Federation
Rykhlova, Lidiya V. Russian Federation Russian Federation
Rastorguev, Alexey S. Russian Federation Russian Federation
Ryabova, Galina O. Russian Federation Russian Federation
Rastegaev, Denis Aleksandrovich Russian Federation Russian Federation
Ryspaeva, Elizaveta Borisovna (Junior Member) Russian Federation Russian Federation
Romanov, Andrey M. Russian Federation Russian Federation
Rodionova, Zhanna F. Russian Federation Russian Federation
Rakić, Nemanja (Junior Member) Bosnia & Herzegovina Serbia, Republic of
Rusin, Vojtech Slovakia Slovakia
Rybák, Ján Slovakia Slovakia
Raath, Jan Louis J.L. (Junior Member) South Africa South Africa
Randriamanakoto, Zara Madagascar South Africa
Radcliffe, Jack Frederick South Africa South Africa
Romero-Colmenero, Encarnacion South Africa South Africa
Rijsdijk, Case South Africa South Africa
Ray, Subharthi South Africa South Africa
Reglero Velasco, Victor Spain Spain
Ribas, Salvador J Spain Spain
Rea, Nanda Spain Spain
Ruiz-Lapuente, María Pilar Spain Spain
Rodes Roca, José Joaquín Spain Spain
Rioja, Maria J. Spain Spain
Rodriguez Frias, Maria D Spain Spain
Rubino-Martin, Jose Alberto Spain Spain
Ros, Rosa M. Spain Spain
Rodríguez Hidalgo, Inés L. Spain Spain
Rouco Escorial, Alicia (Junior Member) Spain Spain
Rizos, Juan Luis (Junior Member) Spain Spain
Romero Pérez, Maria Pilar Spain Spain
Roca-Fàbrega, Santi Spain Spain
Ríos López, Emmanuel (Junior Member) Spain Spain
Rodriguez Espinosa, José Miguel Spain Spain
Rodriguez-Pacheco Martin, Javier Spain Spain
Ribas, Ignasi Spain Spain
Rodríguez Baras, Marina Spain Spain
Ruiz Cobo, Basilio Spain Spain
Rizzo, Jose Ricardo Spain Spain
Rego, Manuel E. Spain Spain
Romero-Gomez, Merce Spain Spain
Ribo, Marc Spain Spain
Rossello, Gaspar Spain Spain
Ramos Almeida, Cristina Spain Spain
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