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 2014 and 2019 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 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 members:13661 (of which 534 Junior members). Number of Active Individual and Junior Members in the IAU Directory: 11124.


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Name▼ Location NCA adherence
Andrillat, Yvette, Deceased France
Andronov, Ivan L. Ukraine Ukraine
Andronova, Anna A. (Inactive) Russian Federation Russian Federation
Andruchow, Ileana Argentina Argentina
Angel, J. Roger P. United States United States
Angelakis, Emmanouil Germany Germany
Angeletti, Lucio (Inactive) Italy Italy
Angeli, Claudia A. Brazil Brazil
Angelou, George Christopher Germany Germany
Angelov, Trajko Serbia, Republic of Serbia, Republic of
Angione, Ronald J. United States United States
Anglada, Guillem Spain Spain
Anguita, Claudio, Deceased (1930-2000) Chile
Anguita, Timo Chile Chile
Angulo, Raul (Inactive) Spain Spain
Anile, Angelo M. (Inactive) Italy Italy
ANN, Hong-Bae Korea, Rep of Korea, Rep of
Annibali, Francesca Italy Italy
Annis, James Timothy United States United States
Annuk, Kalju Estonia Estonia
Anosova, Joanna United States United States
Ansari, S.M. Razaullah India India
Ansdell, Megan (Junior Member) United States United States
Antalova, Anna, Deceased (1936-2007) Slovakia
Anthony-Twarog, Barbara J. United States United States
Antia, H. M. India India
Antiochos, Spiro K. United States United States
Antipin, Sergei V. Russian Federation Russian Federation
Antipova, Lyudmila I. (Inactive) Russian Federation Russian Federation
Antoci, Victoria Denmark Denmark
Antokhin, Igor I. Russian Federation Russian Federation
Antokhina, Eleonora A. Russian Federation Russian Federation
ANTOLIN, Patrick United Kingdom United Kingdom
Anton, Sonia Portugal Portugal
Antonacopoulos, Gregory Greece Greece
Antonelli, Lucio Angelo Italy Italy
Antonello, Elio Italy Italy
Antoniadis, John (Junior Member) Germany Germany
Antoniadou, Kyriaki I. Greece Greece
Antoniou, Vallia United States United States
Antonopoulou, Evgenia Greece Greece
Antonov, Vadim, Deceased (1934-) Russian Federation
Antonova, Antoaneta Emilova Bulgaria Bulgaria
Antonucci, Ester Italy Italy
Antonuccio-Delogu, Vincenzo Italy Italy
Antonyuk, Kirill Ukraine Russian Federation
Antonyuk, Oksana (Junior Member) Russian Federation Russian Federation
Antov, Alexandar Parvanov Bulgaria Bulgaria
Anugu, Narsireddy (Junior Member) United Kingdom United Kingdom
Anupama, Gadiyara Chakrapani India India
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