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: 12754 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12383.


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Name▼ Location NCA adherence
Telford, Grace (Junior Member) United States United States
Telles, Eduardo Brazil Brazil
Temmer, Manuela Austria Austria
Tempel, Elmo Estonia Estonia
Templeton, Matthew R United States United States
Temporin, Sonia Giovanna Austria Austria
ten Brummelaar, Theo A. United States United States
Tendulkar, Shriharsh P India India
Teng, Stacy H United States United States
Tenjes, Peeter Estonia Estonia
Tennyson, Jonathan United Kingdom United Kingdom
Tenorio-Tagle, Guillermo Mexico Mexico
Teodoro, Mairan United States United States
Tepper Garcia, Thorsten Australia Germany
TERADA, Yukikatsu Japan Japan
TERASHIMA , Yuichi Japan Japan
Tereno, Ismael Portugal Portugal
Terentjeva, Alexandra K. Russian Federation Russian Federation
Teriaca, Luca Nunzio Germany Germany
Ter-Kazarian, Gagik Tosik Armenia Armenia
Terlevich, Elena United Kingdom United Kingdom
Terlevich, Roberto Juan United Kingdom United Kingdom
Ternullo, Maurizio Italy Italy
Terranegra, Luciano Italy Italy
Terrell, Dirk C. United States United States
Terrile, Richard John United States United States
Tescari, Edoardo Australia Australia
Tessema, Solomon Belay Ethiopia Ethiopia
Testa, Italo Italy Italy
Testi, Leonardo Italy Italy
Teuben, Peter J. United States United States
Tevzadze, Alexander G. Georgia Georgia
Teyssier, Romain Switzerland Switzerland
Thacker, Robert J Canada Canada
Thakur, Parijat India India
Thaller, Daniela Germany Germany
Thangjam, Guneshwar India India
Thanjavur, Karunananth G Canada United States
Thater, Sabine (Junior Member) Austria Austria
Theis, Christian Germany Germany
Thejll, Peter Andreas Denmark Denmark
Thekkeppattu, Jishnu Nambissan (Junior Member) Australia Australia
Theodossiou, Efstratios Greece Greece
Theureau, Gilles France France
Thevenin, Frederic France France
Thiébaut, Éric M. France France
Thielemann, Friedrich-Karl Switzerland Switzerland
Thierry, Dudok de Wit France France
Thoene, Christina C. Spain Spain
Tholen, David J. United States United States
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