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
Urquhart, James Stuart Australia Australia
Urbaneja, Miguel A. Austria Austria
Ulusoy, Ceren Botswana, Republic of Botswana, Republic of
Unda-Sanzana, Eduardo Chile Chile
URATA, Yuji China, Taipei China, Taipei
Usoskin, Ilya G. Finland Finland
Uson, Juan M. France France
Urrutia, Tanya C Germany Germany
Ulrich, Marie-Helene D. Germany Germany
Udaya, Shankar N. India India
Uddin, Wahab India India
Usov, Vladimir V. Israel Israel
Uslenghi, Michela Clelia Angela Italy Italy
Ubertini, Pietro Italy Italy
Umana, Grazia Italy Italy
UEMURA , Makoto Japan Japan
UENO, Munetaka Japan Japan
UEDA, Haruhiko Japan Japan
UEDA , Yoshihiro Japan Japan
UJIHARA, Hideki Japan Japan
UKITA , Nobuharu Japan Japan
UMEDA, Hideyuki Japan Japan
UMEMOTO , Tomofumi Japan Japan
UMEMURA , Masayuki Japan Japan
URAKAWA, Seitaro Japan Japan
UTSUMI , Kazuhiko Japan Japan
USUI, Fumihiko Japan Japan
USUDA-SATO, Kumiko Japan Japan
UEDA, Akitoshi Japan Japan
Umar, Roslan Malaysia Malaysia
UNGKU IBRAHIM, UNGKU FERWANI SALWA (Junior Member) Malaysia Malaysia
Uscanga, Lucero Mexico Mexico
Uttley, Philip Netherlands Netherlands
Ubachs, Wim Netherlands Netherlands
Urama, Johnson O. Nigeria Nigeria
Urbanik, Marek Poland Poland
Udalski, Andrzej Poland Poland
Usowicz, Jerzy Bogdan Poland Poland
Ureche, Vasile Romania Romania
Usanin, Vladimir S. Russian Federation Russian Federation
Utrobin, Victor P. Russian Federation Russian Federation
Uklein, Roman Ivanovich (Junior Member) Russian Federation Russian Federation
Ugolnikov, Oleg Stanislavovich Russian Federation Russian Federation
Urov sevi'c, Dejan V. Serbia, Republic of Serbia, Republic of
Ulla Miguel, Ana Maria Spain Spain
Uytterhoeven, Katrien Spain Spain
Udry, Stephane Switzerland Switzerland
Ulubay Sıddıki, Ayse Turkey Turkey
Usenko, Igor Ukraine Ukraine
Ulyanov , Oleg Mihajlovich Ukraine Ukraine
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