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▼
Haugan, Stein Vidar H. Norway Norway
Hansteen, Viggo Norway Norway
Hassani, Farbod (Junior Member) Norway Norway
Hervik, Sigbjorn Norway Norway
Hansen, Frode Kristian Norway Norway
Hanasz, Michał B. Poland Poland
Heller, Michał Poland Poland
Handler, Gerald Poland Poland
Hellwing, Wojciech Andrzej Poland Poland
Hajduk, Marcin Poland Poland
Hagen-Thorn, Vladimir A. Russian Federation Russian Federation
Hajdukova, Jr., Maria Slovakia Slovakia
Husarik, Marek Slovakia Slovakia
Hambálek, Ľubomír Slovakia Slovakia
Hefty, Jan Slovakia Slovakia
Hajdukova, Maria Slovakia Slovakia
Hric, Ladislav Slovakia Slovakia
Herbst, Sheldon Rhameez (Junior Member) South Africa South Africa
Hilton, Matt South Africa South Africa
Hellaby, Charles William South Africa South Africa
Hernanz, Margarita Spain Spain
Herrero Davó, Artemio Spain Spain
Holgado Alijo, Gonzalo (Junior Member) Spain Spain
Hernández-Pajares, Manuel Spain Spain
Hernandez-Monteagudo, Carlos Spain Spain
Hjalmarson, Ake G. Sweden Sweden
Horellou, Cathy Sweden Sweden
Hartman, Henrik Sweden Sweden
Hayes, Matthew James Sweden Sweden
Heiter, Ulrike Sweden Sweden
Holmberg, Gustav Sweden Sweden
Högbom, Jan A. Sweden Sweden
Hobbs, David Sweden Sweden
HAAS, RÜDIGER Sweden Sweden
Hess, Kelley Michelle Sweden Sweden
Hobiger, Thomas Germany Sweden
Heikkila, Arto J. Sweden Sweden
Holm, Nils G. Sweden Sweden
Höfner, Susanne Sweden Sweden
Hallgren, Allan Sweden Sweden
Hagelberg, Janis (Junior Member) Switzerland Switzerland
Huber, Martin C.E. Switzerland Switzerland
Heng, Kevin Switzerland Switzerland
Haberreiter, Margit Switzerland Switzerland
Hafez, Ihsan United States Thailand
HUDAVERDI, Murat Turkey Turkey
Hnatyk, Bohdan Ivanovych Ukraine Ukraine
Hnatyk, Roman (Junior Member) Ukraine Ukraine
Holloway, Nigel J. United Kingdom United Kingdom
Harper, David United Kingdom United Kingdom
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