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
Hamedivafa, Hashem Iran, Islamic Rep of Iran, Islamic Rep of
Haghi, Hosein Iran, Islamic Rep of Iran, Islamic Rep of
Hassan, Raaid Nawfee Iraq Iraq
H. Ibrahim, Rasha (Junior Member) Iraq Iraq
Hanlon, Lorraine O. Ireland Ireland
Huybrighs, Hans L.F. (Junior Member) Ireland Ireland
Horesh, Assaf Israel Israel
Hunt, Leslie Italy Italy
Held, Enrico V. Italy Italy
HIRAI, Yutaka (Junior Member) Japan Japan
HANAWA, Tomoyuki Japan Japan
HIEI, Eijiro Japan Japan
HIROSE, Shigenobu Japan Japan
HANADO, Yuko Japan Japan
HIRABAYASHI, Hisashi Japan Japan
HIRAO, Takanori Japan Japan
HANAOKA, Yoichiro Japan Japan
HARA, Tetsuya Japan Japan
HORAGUCHI , Toshihiro Japan Japan
HIRAI, Masanori Japan Japan
HARADA, Nanase Japan Japan
HAYAMA, Kazuhiro Japan Germany
HONDA, Mitsuhiko Japan Japan
HAZUMI, Masashi Japan Japan
HAYASHI, Yoshi-Yuki Japan Japan
HAMABE, Masaru Japan Japan
HONDA, Satoshi Japan Japan
HATTORI, Makoto Japan Japan
HATSUKADE , Isamu Japan Japan
HASHIMOTO, Osamu Japan Japan
HASEGAWA, Sunao Japan Japan
HOSHINO, Masahiro Japan Japan
HIGUCHI, Aya Japan Japan
HIDEKI, Asada Japan Japan
Hatsukade, Bunyo Japan Japan
HORIUCHI, Ritoku Japan Japan
HASEGAWA, Tetsuo Japan Japan
HARA , Hirohisa Japan Japan
HANAMI, Hitoshi Japan Japan
HIROTA, Tomoya Japan Japan
HIRAMATSU, Masaaki Japan Japan
HANDA, Toshihiro Japan Japan
HONMA, Mareki Japan Japan
HAGIWARA, Yoshiaki Japan Japan
HADASCH, Daniela Japan Japan
HOTTA, Hideyuki Japan Japan
HOSOKAWA, Mizuhiko Japan Japan
HIRATA, Ryuko Japan Japan
HAYASHI, Saeko S. Japan Japan
HACHISU , Izumi Japan Japan
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