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: 14043 (of which 719 Junior members). Number of Active Individual and Junior Members in the IAU Directory: 11601.


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Name▼ Location NCA adherence
Rampazzo, Roberto Italy Italy
Ramphul, Rajin Anand (Junior Member) South Africa South Africa
Ramsay, Gavin United Kingdom United Kingdom
Ramsay, Suzanne Katherine Germany Germany
Ramsey, Lawrence W. United States United States
Ramstedt, Sofia Sweden Sweden
Rand, Richard J. United States United States
Randall, Scott W. United States United States
Randich, Sofia Italy Italy
Randriamampandry, Solohery Mampionona (Junior Member) Madagascar Madagascar
Randriamampandry, Toky Herimandimby (Junior Member) Madagascar Madagascar
Randriamanakoto, Zara (Junior Member) Madagascar Madagascar
Ranganathan, Mohanakrishna (Junior Member) United States United States
Rangarajan, K. E. India India
Rangelov, Blagoy United States United States
Rankin, Joanna M. United States United States
Rank-Lueftinger, Theresa Austria Austria
Ransom, Scott M. United States United States
Rantala, Antti (Junior Member) Germany Finland
Rao, Arikkala Raghurama India India
Rao, Balachandra India India
Rao, M. N. United States United States
Rao, N. Kameswara India India
Rao, Pasagada Vivekananda India India
Rao, Ramprasad P United States United States
Rao, Sandhya M. United States United States
Rappenglück, Michael A. Germany Germany
Rasio, Frederic A. United States United States
Raskin, Gert Belgium Belgium
Rasmussen, Ib L. Denmark Denmark
Rasmussen, Jesper Denmark Denmark
Rastegaev, Denis Aleksandrovich Russian Federation Russian Federation
Rastogi, Shantanu India India
Rastorguev, Alexey S. Russian Federation Russian Federation
Ratag, Mezak Arnold Indonesia Indonesia
Ratajczak, Milena (Junior Member) Poland Poland
Ratcliff, Stephen J. United States United States
Rathborne, Jill Maree Australia Australia
Ratnatunga, Kavan U. Sri Lanka AA-Country unknown
Ratsimbazafy, Ando Lalaina (Junior Member) Madagascar Madagascar
Rattenbury, Nicholas James New Zealand New Zealand
Ratzka, Thorsten Germany Germany
Rau, Gioia (Junior Member) United States United States
Rauch, Michael United States United States
Rauch, Thomas Germany Germany
Rauer, Heike Germany Germany
Raulin, Jean-Pierre Brazil Brazil
Rauscher, Thomas Switzerland Switzerland
Rauw, Gregor Belgium Belgium
Raveendran, A. V. India India
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