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: 12428 (of which 1084 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12099.


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Name Location NCA adherence▼
Ratnatunga, Kavan U. Sri Lanka AA-Country unknown
Rovira, Marta G. Argentina Argentina
Rohrmann, Rene Daniel Argentina Argentina
Reynoso, Estela M. Argentina Argentina
Rabolli, Monica Argentina Argentina
Romero, Gustavo Esteban Argentina Argentina
Ringuelet, Adela E. Argentina Argentina
Rovero, Adrián Carlos Argentina Argentina
Robinson, Garry Australia Australia
Reid, Warren Alfred Australia Australia
Robotham, Aaron S.G. Australia Australia
Ryder, Stuart Australia Australia
Rowell, Gavin Peter Australia Australia
Ryan-Weber, Emma V Australia Australia
Reynolds, John Australia Australia
Robertson, James Gordon Australia Australia
Robertson, Peter Australia Australia
Reynolds, Cormac Australia Australia
Rigaut, Francois J Australia Australia
Rathborne, Jill Maree Australia Australia
Reichardt, Christian L Australia Australia
Recchi, Simone Austria Austria
Rank-Lueftinger, Theresa Austria Austria
Rucker, Helmut O. Austria Austria
Rekier, Jérémy (Junior Member) Belgium Belgium
Rauw, Gregor Belgium Belgium
Raskin, Gert Belgium Belgium
Rayet, Marc Belgium Belgium
Royer, Pierre Belgium Belgium
ringeval, christophe Belgium Belgium
Robe, Henri H.G. Belgium Belgium
Reyniers, Maarten Belgium Belgium
Rodrigues de Oliveira Filho, Irapuan Brazil Brazil
Ribeiro, Marcelo Byrro Brazil Brazil
Rodrigues, Claudia Vilega Brazil Brazil
Ribeiro, André Luis Batista Brazil Brazil
Riffel, Rogemar A Brazil Brazil
Rojas, Gustavo de Araujo Portugal Brazil
Rossi, Silvia C.F. Brazil Brazil
Rosa, Reinaldo R. Brazil Brazil
Riffel, Rogério Brazil Brazil
Roig, Fernando Virgilio Brazil Brazil
Raulin, Jean-Pierre Brazil Brazil
Rocha-Pinto, Hélio J. Brazil Brazil
Rabello-Soares, Maria Cristina A. Brazil Brazil
Riguccini, Laurie Brazil Brazil
Radeva, Veselka Siderova Bulgaria Bulgaria
Russev, Ruscho Minchev Bulgaria Bulgaria
Richer, Harvey B. Canada Canada
Rajabi, Fereshteh (Junior Member) Canada Canada
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