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
Aalto, Susanne E. Sweden Sweden
Aannestad, Per Arne United States United States
Aarseth, Sverre J. United Kingdom United Kingdom
Abad Hiraldo, Carlos Venezuela Venezuela
Abadi, Mario Gabriel Argentina Argentina
Abad Medina, Alberto J. Spain Spain
Abalakin, Viktor, Deceased (1930-2018) Russian Federation
Abbas, Ummi Italy Italy
Abbasov, Alik, Deceased Azerbaijan, Republic of
Abbett, William P. United States United States
Abbott, David C. (Inactive) United States United States
Abbott, Timothy M.C. Chile Chile
Abbott, W. (Inactive) United States United States
Abbott, William, Deceased (1906-2001) Greece
Abdelatif, Toufik E Algeria Algeria
Abdelbar, Ahmed Mohamed (Junior Member) Egypt Egypt
Abdel-Hadi, Yasser Abdel-Fattah Egypt Egypt
Abd El Hamid, Rabab (Inactive) Egypt Egypt
Abdelkawi, M., Deceased Egypt
Abdelkawy, Ali Gamal Awis (Junior Member) Egypt Egypt
Abdel Rahman, Helal Ismaeil Egypt Egypt
Abdul Aziz, Ahmad Zaharim (Inactive) Malaysia Malaysia
Abdul Hamid, Nurul Shazana (Junior Member) Malaysia Malaysia
Abdulla, Shaker Abdul Aziz (Inactive) Iraq Iraq
ABE, Shinsuke Japan Japan
Ābele, Māris K. Latvia Latvia
Abell, George, Deceased (-1983) United States
Abetti, Antonio, Deceased (1846-1928) Italy
Abetti, Giorgio, Deceased (1882-1982) Italy
Abgrall, Herve France France
Abhyankar, Krishna, Deceased (1929-) India
Abia, Carlos A. Spain Spain
Ables, Harold D. United States United States
Ables, John, Deceased (1937-) Australia
Abolmasov, Pavel Finland Finland
Aboudarham, Jean France France
Abou'el-ella, Mohamed S. (Inactive) Egypt Egypt
Abouelmagd, Elbaz I. Egypt Egypt
Abraham, Henry J. (Inactive) Australia Australia
Ábrahám, Péter Hungary Hungary
Abraham, Roberto G. Canada Canada
Abraham, Sheelu (Junior Member) India India
Abraham, Zulema Brazil Brazil
Abrahamian, Hamlet V. Armenia Armenia
Abramenko, Valentina (Inactive) United States United States
Abrami, Alberto, Deceased Italy
Abramowicz, Marek Poland Poland
Abrevaya, Ximena Argentina Argentina
Absil, Olivier Belgium Belgium
Abt, Helmut A. United States United States
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