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: 12743 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12378.


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Name▼ Location NCA adherence
KOBAYASHI, Naoto Japan Japan
KOBAYASHI, Yukiyasu Japan Japan
Kobychev, Vladislav Valerievich Ukraine Ukraine
Kocer, Dursun Turkey Turkey
Koch, Andreas Germany Germany
KOCH, Patrick Michel China, Taipei China, Taipei
Kocharovskij, Vladimir V. Russian Federation Russian Federation
Kocharovsky, Vitaly V. United States Russian Federation
Kochiashvili, Nino Georgia Georgia
Kochina, Olga (Junior Member) Russian Federation Russian Federation
Kochukhov, Oleg Sweden Sweden
Kocifaj, Miroslav Slovakia Slovakia
KODA, Jin United States Japan
KODAIRA, Keiichi Japan Japan
KODAMA, Hideo Japan Japan
KODAMA, Tadayuki Japan United States
Koeberl, Christian Austria Austria
Koechlin, Laurent France France
Koehler, Rainer United States Austria
Koekemoer, Anton M. United States United States
Koen, Marthinus Chris South Africa South Africa
Koenigsberger, Gloria Mexico Mexico
Körding, Elmar Netherlands Netherlands
Koester, Detlev Germany Germany
Kofman, Wlodek Włodzimierz Poland Poland
Kohler, Susanna United States United States
KOHMURA, Takayoshi Japan Japan
KOHNO, Kotaro Japan Japan
KOHNO, Mikito (Junior Member) Japan Japan
KOIDE , Shinji Japan Japan
KOIKE , Chiyoe Japan Japan
Koivisto, Tomi Sebastian Finland Finland
KOJIMA, Masayoshi Japan Japan
KOJIMA, Yasufumi Japan Japan
Kokhirova, Gulchehra I. Tajikistan Tajikistan
Kokkotas, Konstantinos D Germany Germany
KOKUBO, Eiichiro Japan Japan
KOKUBUN, Motohide Japan Japan
Kolb, Edward W. United States United States
Kolb, Ulrich United Kingdom United Kingdom
Kolb, Vera M. United States United States
Kolbin, Alexander Russian Federation Russian Federation
Koldobskiy, Sergey A. Finland Finland
Kolenberg, Katrien Belgium Belgium
Kolesnikov, Dmitry Alekseevich (Junior Member) Israel Russian Federation
Kolesnikov, Sergey Ukraine Ukraine
Kolesnyk, Yuriy Ukraine Ukraine
Kolesov, Aleksandr K. Russian Federation Russian Federation
Koleva, Kostadinka Bulgaria Bulgaria
Koljonen, Karri I. I. Finland Finland
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