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: 12755 (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
Heinkelmann, Robert Germany Germany
Heinz, Sebastian United States United States
Heinzel, Petr Czech Republic Czech Republic
Heise, John Netherlands Netherlands
Heiser, Arnold M. United States United States
Heiter, Ulrike Sweden Sweden
Hejna, Ladislav Czech Republic Czech Republic
Hekker, Saskia Germany Germany
Held, Enrico V. Italy Italy
Helfand, David John United States United States
Hellaby, Charles William South Africa South Africa
Hellbourg, Gregory United States United States
Helled, Ravit Switzerland Israel
Heller, Michał Poland Poland
Heller, René Germany Germany
Hellier, Coel United Kingdom United Kingdom
Helling, Christiane United Kingdom United Kingdom
Hellwing, Wojciech Andrzej Poland Poland
Helmer, Leif Denmark Denmark
Helmi, Amina Netherlands Netherlands
Helmich, Frank P. Netherlands Netherlands
Helou, George United States United States
Hemenway, Mary Kay M. United States United States
Hemenway, Paul D. United States United States
Hempel, Marc Germany Germany
Hempelmann, Alexander M. Germany Germany
Henault-Brunet, Vincent (Junior Member) Canada Canada
Henden, Arne A. United States United States
Hendry, Martin A. United Kingdom United Kingdom
Hendy, Yasser Hassan Egypt Egypt
Heng, Kevin Switzerland Switzerland
Henkel, Christian Germany Germany
Hennebelle, Patrick France France
Henneken, Edwin A United States United States
Hennessy, Gregory Scott United States United States
Henney, William John Mexico Mexico
Henning, Patricia A. United States United States
Henning, Thomas Germany Germany
Henrichs, Hubertus F. Netherlands Netherlands
Henriksen, Mark Jeffrey United States United States
Henriksen, Richard N. Canada Canada
Henry, Alaina L United States United States
Henry, Richard B.C. United States United States
Henry, Richard Conn United States United States
Henry, Todd J United States United States
Hensberge, Herman Brazil Brazil
Hensler, Gerhard Austria Austria
Henych, Tomáš Czech Republic Czech Republic
Heras, Ana M. Netherlands Netherlands
Herbst, Eric United States United States
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