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: 12744 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12379.


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Name▼ Location NCA adherence
Barbosa, Carlos Eduardo (Junior Member) Brazil Brazil
Barbosa, Cassio Leandro Dal Ri Brazil Brazil
Barbosa, Domingos Portugal Portugal
Barbosu, Mihail Romania Romania
Barbuy, Beatriz Brazil Brazil
Barclay, Charles E. United Kingdom United Kingdom
Barclay, Thomas United States United States
Barcons, Xavier Germany Spain
Bardeen, James M. United States United States
Bardelli, Sandro Italy Italy
Barden, Marco Germany Germany
Barden, Samuel Charles Germany Germany
Barentine, John C. United States United States
Barentsen, Geert United States United States
BARET, Bruny France France
Barge, Pierre France France
Barger, Amy J. United States United States
Barger, Kat A. United States United States
Baring, Matthew G. United States United States
Barkana, Rennan Israel Israel
Barker, Adrian John United Kingdom United Kingdom
Barker, Edwin S. United States United States
Barkhouse, Wayne Alan United States United States
Barklem, Paul S. Sweden Sweden
Barkov, Maxim V Russian Federation Russian Federation
Barlier, François E. France France
Barlow, Michael J. United Kingdom United Kingdom
Barmby, Pauline Canada Canada
Barnbaum, Cecilia United States United States
Barnes, Aaron United States United States
Barnes, David G. Australia Australia
Barnes, Graham United States United States
Barnes, Sydney A. Germany Germany
Barnes III, Thomas G. United States United States
Baron, Eddie United States United States
Baron, Frédérique (Junior Member) Canada Canada
Barone, Fabrizio Italy Italy
Barrado Navascués, David Spain Spain
Barrantes, Marco Ney Costa Rica Costa Rica
Barrera Ballesteros, Jorge Karolt Mexico Mexico
Barres de Almeida, Ulisses Brazil Brazil
Barret, Didier France France
Barrett, Paul E United States United States
Barria, Daniela (Junior Member) Chile Chile
Barrientos, Luis Felipe Chile Chile
Barriot, Jean-Pierre France France
Barron, Eric Gary United States United States
Barros, Susana Cristina Cabral de Portugal Portugal
Barsanti, Stefania (Junior Member) Australia Australia
Barsony, Mary United States United States
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