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 10 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.

Total number of IAU Individual and Junior members: 13581 (of which 533 Junior members). Number of Active Individual and Junior Members in the IAU Directory: 11090.


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Name Location NCA adherence▼
Hashimoto, Yasuhiro China, Taipei China, Taipei
HWANG , Chorng-Yuan China, Taipei China, Taipei
HIRANO , Naomi China, Taipei China, Taipei
HIRASHITA , Hiroyuki China, Taipei China, Taipei
HSU, Rue-Ron China, Taipei China, Taipei
Higuera Garzon, Mario Armando Colombia Colombia
Heyrovsky, David Czech Republic Czech Republic
Hejna, Ladislav Czech Republic Czech Republic
Horácek, Jiri Czech Republic Czech Republic
Heinzel, Petr Czech Republic Czech Republic
Hadrava, Petr Czech Republic Czech Republic
Hornoch, Kamil Czech Republic Czech Republic
Hudec, Rene Czech Republic Czech Republic
Hanus, Josef Czech Republic Czech Republic
Haas, Jaroslav Czech Republic Czech Republic
Hledík, Stanislav Czech Republic Czech Republic
Harmanec, Petr Czech Republic Czech Republic
Honková, Michaela (Junior Member) Czech Republic Czech Republic
Haugbølle, Troels Denmark Denmark
Høg, Erik Denmark Denmark
Helt, Bodil E. Denmark Denmark
Hornstrup, Allan Denmark Denmark
Houdek, Gunter Denmark Denmark
Helmer, Leif Denmark Denmark
Hjorth, Jens Denmark Denmark
Hansen, Camilla Juul Denmark Denmark
Hannestad, Steen Denmark Denmark
Hoyle, Fiona Ecuador Ecuador
Hendy, Yasser Hassan Egypt Egypt
Hussein, Hussein Mohamed Farid (Junior Member) Egypt Egypt
Hassan, A. H. Hassan Amir Egypt Egypt
Hanna, Yousry Shafik Egypt Egypt
Hanna, Magdy Abd El-Malek Egypt Egypt
Hutsi, Gert Estonia Estonia
Hovatta, Talvikki Finland Finland
Heinamaki, Pekka S. Finland Finland
Hackman, Thomas Finland Finland
Hakala, Pasi J. Finland Finland
Huovelin, Juhani Finland Finland
Hannikainen, Diana C. Finland Finland
Hänninen, Jyrki Finland Finland
Harju, Jorma Sakari Finland Finland
Hayli, Abraham France France
Herpin, Fabrice France France
Hestroffer, Daniel France France
HERSANT, Franck France France
Hammer, François France France
Hochedez, Jean-François E. France France
Heudier, Jean-Louis France France
Humphries, Colin M. France France
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