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: 12754 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12383.


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Name Location NCA adherence▼
Ryabov, Boris I. Latvia Latvia
Rajoelimanana, Andry Fitiavana Madagascar Madagascar
Ratsimbazafy, Ando Lalaina (Junior Member) Madagascar Madagascar
Rafieferantsoa, Mika (Junior Member) South Africa Madagascar
Ramamonjisoa, Fidy A. (Junior Member) Madagascar Madagascar
Randriamampandry, Solohery M. Madagascar Madagascar
Randriamampandry, Toky Herimandimby (Junior Member) Madagascar Madagascar
Rubio-Herrera, Eduardo Mexico Mexico
Recillas Pishmish, Elsa Mexico Mexico
Richer, Michael Gerard Mexico Mexico
Rodríguez-Rico, Carlos A Mexico Mexico
Héctor Rodríguez Merino, Lino Mexico Mexico
Rodriguez, Luis F. Mexico Mexico
Rodríguez, Monica Mexico Mexico
Roman-Zuniga, Carlos Gerardo Mexico Mexico
Rosado, Margarita Mexico Mexico
Reyes, Jorge Mexico Mexico
Rodríguez-González, Ary Mexico Mexico
Ramos-Larios, Gerardo Mexico Mexico
Ruelas-Mayorga, R. A. Mexico Mexico
Reyes-Ruiz, Mauricio Mexico Mexico
Rosa González, Daniel Mexico Mexico
Rosales-Ortega, Fernando Fabián Mexico Mexico
Rowlinson, Antonia Netherlands Netherlands
Rottgering, Huub Netherlands Netherlands
Rybak, Matus (Junior Member) Netherlands Netherlands
Roelfsema, Peter Netherlands Netherlands
Rodenhuis, Michiel Netherlands Netherlands
Raassen, Ion Netherlands Netherlands
Rieder, Steven Belgium Netherlands
Ribeiro, Bruno R. L. (Junior Member) Netherlands Netherlands
Rajwade, Kaustubh (Junior Member) United Kingdom Netherlands
Rab, Christian (Junior Member) Germany Netherlands
Rossi, Elena Maria Netherlands Netherlands
Russo, Pedro Netherlands Netherlands
Rattenbury, Nicholas James New Zealand New Zealand
Riemer-Sorensen, Signe Norway Norway
Rouppe van der Voort, Luc H.M. Norway Norway
Reyes, Rafael Carlos Peru Peru
Różańska, Agata Poland Poland
Rudawy, Paweł Poland Poland
Romano, Michael (Junior Member) Poland Poland
Rudak, Bronisław Poland Poland
Rosinska, Dorota Helena Poland Poland
Ratajczak, Milena (Junior Member) Poland Poland
Różyczka, Michal Poland Poland
Ryś, Stanisław Poland Poland
Rompolt, Bogdan Poland Poland
Roos-Serote, Maarten C. Portugal Portugal
Ribeiro, Valerio A. R. M. Portugal Portugal
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