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
Romero-Colmenero, Encarnacion South Africa South Africa
Romero-Gomez, Merce Spain Spain
Romero Pérez, Maria Pilar Spain Spain
Roming, Peter W.A. United States United States
Romney, Jonathan D. United States United States
Romoli, Marco Italy Italy
Rompolt, Bogdan Poland Poland
Ron, Cyril Czech Republic Czech Republic
Ronco, María Paula (Junior Member) Chile Chile
Rondoni, Lamberto Italy Italy
Roosen, Robert George United States United States
Roos-Serote, Maarten C. Portugal Portugal
Roques, Françoise France France
Ros, Rosa M. Spain Spain
Roša, Dragan Croatia, the Republic of Croatia, the Republic of
Rosa, Reinaldo R. Brazil Brazil
Rosado, Margarita Mexico Mexico
Rosa González, Daniel Mexico Mexico
Rosales-Ortega, Fernando Fabián Mexico Mexico
Rose, James Anthony United States United States
Rosenberg González, Alfred Spain Spain
Rosenbush, Alexander E. Ukraine Ukraine
Rosenbush, Vera Ukraine Ukraine
Rosenzweig-Levy, Patricia Venezuela Venezuela
Ros Ibarra, Eduardo Germany Germany
Rosinska, Dorota Helena Poland Poland
Rosner, Robert United States United States
Rosolowsky, Erik William Canada Canada
Rosquist, Kjell Sweden Sweden
Rossello, Gaspar Spain Spain
Rossetti, Mariachiara Italy Italy
Rossi, Alessandro Italy Italy
Rossi, Andrea (Junior Member) Italy Italy
Rossi, Corinne Italy Italy
Rossi, Elena Maria Netherlands Netherlands
Rossi, Silvia C.F. Brazil Brazil
ROSSI, Graziano Korea, Rep of Korea, Rep of
Rosswog, Stephan H. K. Sweden Sweden
Rostopchina, Alla Ukraine Russian Federation
Rosvick, Joanne M. Canada Canada
Roth, Ilan United States United States
Roth, Markus Germany Germany
Roth, Miguel R. Chile Chile
Roth, Nathan X (Junior Member) United States United States
Rothacher, Markus Switzerland Switzerland
Rothberg, Barry United States United States
Rots, Arnold H. United States United States
Rottgering, Huub Netherlands Netherlands
Rottmann, Helge Germany Germany
Rouan, Daniel France France
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