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 10 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: 13587 (of which 533 Junior members). Number of Active Individual and Junior Members in the IAU Directory: 11098.


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Name▼ Location NCA adherence
Ritchey, Adam Michael United States United States
Ritter, Hans Germany Germany
Rivera Sandoval, Liliana Elizabeth (Junior Member) United States United States
Rivilla, Víctor M. (Junior Member) Italy Italy
Rivinius, Thomas Chile Chile
Rix, Hans-Walter Germany Germany
Rizzi, Luca United States United States
Rizzo, Jose Ricardo Spain Spain
Roa Garzón, Maximo Alejandro Germany Germany
Roark, Terry P. United States United States
Robb, Russell M. Canada Canada
Robba, Natale Italy Italy
Robberto, Massimo United States United States
Robe, Henri H.G. Belgium Belgium
Robert, Carmelle Canada Canada
Robert, Vincent France France
Roberts, David Hall United States United States
Roberts, Douglas Alan United States United States
Roberts, Mallory Strider Ellison United States United States
Roberts, Morton S. United States United States
Roberts, Timothy P. United Kingdom United Kingdom
Roberts Jr, Lewis C. United States United States
Roberts Jr, William W. United States United States
Robertson, Douglas S. United States United States
Robertson, James Gordon Australia Australia
Robin, Annie C. France France
Robinson, Andrew United States United States
Robinson, Edward L. United States United States
Robinson, Frank J United States United States
Robinson, Garry Australia Australia
Robishaw, Timothy Canada Canada
Robotham, Aaron S.G. Australia Australia
Robson, Ian United Kingdom United Kingdom
Roca Cortés, Teodoro Spain Spain
Rocca-Volmerange, Brigitte France France
Rocha-Pinto, Hélio J. Brazil Brazil
Roche, Patrick F. United Kingdom United Kingdom
Rodin, Alexander E. Russian Federation Russian Federation
Rodionova, Zhanna F. Russian Federation Russian Federation
Rodrigues, Claudia Vilega Brazil Brazil
Rodrigues de Oliveira Filho, Irapuan Brazil Brazil
Rodriguez, Eloy Spain Spain
Rodriguez, Luis F. Mexico Mexico
Rodríguez, Monica Mexico Mexico
Rodriguez, Sébastien France France
Rodriguez Espinosa, José Miguel Spain Spain
Rodríguez-Ferreira, Julián Colombia Colombia
Rodríguez-Franco, Arturo Spain Spain
Rodríguez-Gil, Pablo Spain Spain
Rodríguez-González, Ary Mexico Mexico
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