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
Janes, Kenneth A. United States United States
JANG , Minwhan Korea, Rep of Korea, Rep of
Janik, Jan Czech Republic Czech Republic
Janiuk, Agnieszka Poland Poland
Janka, Hans Thomas Germany Germany
Jankov, Slobodan S. Serbia, Republic of Serbia, Republic of
Jankovics, Istvan Hungary Hungary
Jankowski, Fabian (Junior Member) United Kingdom United Kingdom
Jannuzi, Buell Tomasson United States United States
Janot Pacheco, Eduardo Brazil Brazil
Janowiecki, Steven P (Junior Member) United States Australia
Jansen, Rolf A United States United States
Janson, Markus Sweden Sweden
Janssen, Gemma H. Netherlands Netherlands
Janssen, Katja Italy Italy
Janssen, Michael Allen United States United States
Janusz, Robert M. Vatican City State Vatican City State
Janvier, Miho France France
Janz, Joachim Finland Finland
Japelj, Jure (Junior Member) Slovenia, the Republic of Slovenia, the Republic of
Jaranowski, Piotr Poland Poland
Jardine, Moira M. United Kingdom United Kingdom
Jaroenjittichai, Phrudth Thailand Thailand
Jaroszyński, Michał Poland Poland
Jarrett, Thomas H. South Africa South Africa
Järvinen, Silva P. Germany Germany
Jarvis, Johanna Fleur United Kingdom United Kingdom
Jasinghege Don, Prasanna Deshapriya (Junior Member) France France
Jaskot, Anne United States United States
Jasniewicz, Gerard France France
Jassal, Harvinder Kaur India India
Jassur, Davoud M.Z. Iran, Islamic Rep of Iran, Islamic Rep of
Jatenco-Pereira, Vera Brazil Brazil
Jauncey, David L. Australia Australia
Jaunsen, Andreas Ortmann Norway Norway
Javadi, Atefeh Iran, Islamic Rep of Iran, Islamic Rep of
Jayawardhana, Ray United States United States
Jean, Pierre France France
Jedicke, Robert United States United States
Jefferies, Stuart M. United States United States
Jeffers, Sandra V Germany Germany
Jeffery, Simon United Kingdom United Kingdom
Jefferys, William H. United States United States
Jeffrey, Natasha L. S. United Kingdom United Kingdom
Jehin, Emmanuel Belgium Belgium
Jelić, Vibor Croatia, the Republic of Croatia, the Republic of
Jelínek, Petr Czech Republic Czech Republic
Jenkins, Edward B. United States United States
Jenkins, James S. Chile Chile
Jenkner, Helmut United States United States
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