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: 12776 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12403.


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Name Location NCA adherence▼
Tarasov, Anatolii E. Ukraine Russian Federation
Tyul'bashev, Sergei A. Russian Federation Russian Federation
Tikhonov, Nikolai Russian Federation Russian Federation
Tarasov, Sergei (Junior Member) Russian Federation Russian Federation
Tchouikova, Nadezhda A. Russian Federation Russian Federation
Titov, Vladimir Borisovich Russian Federation Russian Federation
Tarakanov, Peter A. Russian Federation Russian Federation
Todorović, Nataša Serbia, Republic of Serbia, Republic of
Tóth, Juraj Slovakia Slovakia
Takalana, Charles Mpho (Junior Member) South Africa South Africa
Thorat, Kshitij H South Africa South Africa
Teixeira, Paula Stella United Kingdom South Africa
Tiplady, Adrian John South Africa South Africa
Townsend, Lee J South Africa South Africa
Trujillo Cabrera, Ignacio Spain Spain
Trigo-Rodriguez, Josep M. Spain Spain
Trullols, I. Farreny Enric Spain Spain
Toledo-Redondo, Sergio Spain Spain
Torralba Elipe, Guillermo (Junior Member) Spain Spain
José Miguel Torrejón, Jose Miguel Spain Spain
Thoene, Christina C. Spain Spain
Toffolatti, Luigi Spain Spain
Thum, Clemens Spain Spain
Trujillo Bueno, Javier Spain Spain
Torres, Diego F. Spain Spain
Tafalla, Mario Spain Spain
Torrelles, Jose Maria Spain Spain
Tafoya, Daniel Sweden Sweden
Thorsbro, Brian (Junior Member) Sweden Sweden
Treviño Morales, Sandra Patricia (Junior Member) Sweden Sweden
Thomasson, Magnus Sweden Sweden
Toribio Pérez, Maria Carmen Sweden Sweden
Traven, Gregor (Junior Member) Slovenia, the Republic of Sweden
Torkelsson, Ulf J. Sweden Sweden
Türler, Marc A. Switzerland Switzerland
Teyssier, Romain Switzerland Switzerland
Thomas, Nicolas Switzerland Switzerland
Thielemann, Friedrich-Karl Switzerland Switzerland
Tan, Peng Kian Singapore Thailand
Tummuangpak, Pimpunyawat Thailand Thailand
Torteeka, Peerapong (Junior Member) Thailand Thailand
Tanakul, Nahathai (Junior Member) Thailand Thailand
Tektunali, H. Gokmen Turkey Turkey
TANRIVERDİ, Taner Turkey Turkey
Torun, Mehmet Kemalettin (Junior Member) Turkey Turkey
TAŞ, Günay Turkey Turkey
Topal, Selcuk Turkey Turkey
Tugay, Anatoliy V. Ukraine Ukraine
Tkachenko, Mariia G. (Junior Member) Ukraine Ukraine
Tarady, Vladimir K. Ukraine Ukraine
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