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▼
HIDEKI, Asada Japan Japan
HAMABE, Masaru Japan Japan
HIRAI, Yutaka (Junior Member) Japan Japan
HORIUCHI, Ritoku Japan Japan
HAN, Wonyong Korea, Rep of Korea, Rep of
HYUNG, Siek Korea, Rep of Korea, Rep of
HAN, Inwoo Korea, Rep of Korea, Rep of
HWANG, Ho Seong Korea, Rep of Korea, Rep of
HONG, Sungwook E. Korea, Rep of Korea, Rep of
HAN, Cheongho Korea, Rep of Korea, Rep of
HOANG, Thiem Chi Korea, Rep of Korea, Rep of
HWANG, Junga Korea, Rep of Korea, Rep of
HWANG, Narae Korea, Rep of Korea, Rep of
HAN, Jeong-Yeol Korea, Rep of Korea, Rep of
Hur, Hyeonoh Korea, Rep of Korea, Rep of
HAYASAKI, Kimitake Korea, Rep of Korea, Rep of
HWANG , Jai-chan Korea, Rep of Korea, Rep of
Hashim, Norsiah Malaysia Malaysia
Hughes, David H. Mexico Mexico
Hidalgo-Gamez, Ana Maria Mexico Mexico
Hernandez, Jesús O. Mexico Mexico
Henney, William John Mexico Mexico
Hiriart, David Mexico Mexico
Hueyotl-Zahuantitla, Filiberto (Junior Member) Mexico Mexico
Hernández, Xavier Mexico Mexico
Hovenier, J. W. Netherlands Netherlands
Helmi, Amina Netherlands Netherlands
Henrichs, Hubertus F. Netherlands Netherlands
Hoekstra, Hendrik Netherlands Netherlands
Haverkorn, Marijke Netherlands Netherlands
Hessels, Jason W T Netherlands Netherlands
Holt, Joanna Netherlands Netherlands
Healy, Julia Lynn (Junior Member) Netherlands Netherlands
Hall, Oliver James (Junior Member) Netherlands Netherlands
Huppenkothen, Daniela Netherlands Netherlands
Hermsen, Willem Netherlands Netherlands
Hörandel, Jörg Netherlands Netherlands
Habing, Harm J. Netherlands Netherlands
Heise, John Netherlands Netherlands
Hussain, Gaitee A. J. Netherlands Netherlands
Hrodmarsson, Helgi Rafn (Junior Member) Netherlands Netherlands
Helmich, Frank P. Netherlands Netherlands
Hernandez Santisteban, Juan Venancio (Junior Member) United Kingdom Netherlands
Hogerheijde, Michiel R Netherlands Netherlands
Hoyng, Peter Netherlands Netherlands
Hacar, Alvaro (Junior Member) Netherlands Netherlands
Heras, Ana M. Netherlands Netherlands
Hill, Graham New Zealand New Zealand
Hearnshaw, John B. New Zealand New Zealand
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