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: 12425 (of which 1084 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12090.


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Name Location NCA adherence▼
Ioannou, Zach Oman AA-Country unknown
Iglesias, Francisco Andres (Junior Member) Argentina Argentina
Ireland, Michael James Australia Australia
Iro, Nicolas Austria Austria
Ismayilov, Nariman Zeynalabdi Azerbaijan, Republic of Azerbaijan, Republic of
Ivantsov, Anatoliy Belgium Belgium
Idiart, Thais E. Brazil Brazil
Izidoro Ferreira da Costa, André United States Brazil
Iliev, Lubomir (Junior Member) Bulgaria Bulgaria
Ivanova, Violeta Georgieva Bulgaria Bulgaria
Iliev, Ilian Khristov Bulgaria Bulgaria
Ibryamov, Sunay Bulgaria Bulgaria
Ivanova, Natalia Canada Canada
Irwin, Alan W. Canada Canada
Israel, Werner Canada Canada
Irwin, Judith Canada Canada
Infante, Leopoldo Chile Chile
INOUE, Makoto China, Taipei China, Taipei
IP, Wing-Huen China, Taipei China, Taipei
Izzo, Luca Denmark Denmark
Ibrahim, Ahmed Hafez Mohammed (Junior Member) Egypt Egypt
Ismail, Mohamed Nader Egypt Egypt
Ibrahim, Makram Ibrahim Khalil Egypt Egypt
Ismail, Hamed Abdel-Hamid Egypt Egypt
Ibata, Rodrigo A France France
Irigoyen, Maylis France France
Irbah, Abdanour France France
Imbert, Maurice France France
Ilyin, Ilya V. Germany Germany
Isliker, Heinz Greece Greece
Iyyani, Shabnam India India
Ibrahim, Syed M (Junior Member) India India
Iyer, Balasubramanian R. India India
Izzet, Ahmed kader Iraq Iraq
Iijima, Takashi Italy Italy
Iafrate, Giulia Italy Italy
Iorio, Lorenzo Italy Italy
Iodice, Enrichetta Italy Italy
Ieva, Simone (Junior Member) Italy Italy
Israel, Gian Luca Italy Italy
Ignesti, Alessandro (Junior Member) Italy Italy
IMANISHI, Masatoshi Japan Japan
ISHIDA, Toshihito Japan Japan
IWAMURO, Fumihide Japan Japan
ISHIHARA, Hideki Japan Japan
ISHIZUKA, Toshihisa Japan Japan
ISHIGURO, Masato Japan Japan
ISHIDA, Manabu Japan Japan
IMAI, Hiroshi Japan Japan
ISHII, Shun Japan Japan
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