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
Brown, Thomas M. United States United States
Brown, Toby (Junior Member) Canada Canada
Brown, Warren R. United States United States
Browne, Ian W.A. United Kingdom United Kingdom
Browning, Matthew United Kingdom United Kingdom
Browning, Philippa K. United Kingdom United Kingdom
Brownlee, Donald E. United States United States
Brož, Miroslav Czech Republic Czech Republic
Broz, Petr Czech Republic Czech Republic
Brozovic, Marina United States United States
Brucato, John Robert Italy Italy
Bruch, Albert Brazil Brazil
Bruenn, Stephen W. United States United States
Brüggen, Marcus Germany Germany
Bruhweiler, Frederick C. United States United States
Bruls, Jo H. Germany Germany
Brumberg, Victor A. Russian Federation Russian Federation
Brun, Allan Sacha France France
Brunetti, Gianfranco Italy Italy
Bruni, Gabriele (Junior Member) Italy Italy
Bruning, David H. United States United States
Brunini, Adrian Argentina Argentina
Brunner, Robert J United States United States
Bruno, Roberto Italy Italy
Brunthaler, Andreas Germany Germany
Bruntt, Hans Denmark Denmark
Bruursema, Justice Elisha United States United States
Bruyninx, Carine Belgium Belgium
Bruzual, Gustavo R. Mexico Mexico
Bryan, Greg United States United States
Bryant, Julia Jane Australia Australia
Bryden, Geoffrey United States United States
Brynildsen, Nils Norway Norway
Brzeziński, Aleksander Poland Poland
Buat, Véronique France France
Bučar Bricman, Katja (Junior Member) Slovenia, the Republic of Slovenia, the Republic of
Bucciarelli, Beatrice Italy Italy
Buccino, Andrea Paola Argentina Argentina
Buchhave, Lars A. Denmark Denmark
Buchlin, Eric France France
Bucik, Radoslav United States Germany
Buckley, David A.H. South Africa South Africa
Budaj, Jan Slovakia Slovakia
Buddelmeijer, Hugo (Junior Member) Netherlands Netherlands
Budding, Edwin New Zealand New Zealand
Buechner, Joerg Germany Germany
Bueno de Camargo, Julio Ignacio Brazil Brazil
Bues, Irmela D. Germany Germany
Buie, Marc W. United States United States
Buitink, Stijn Belgium Belgium
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