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: 12742 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12377.


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Name▼ Location NCA adherence
Iacobelli, Marco Netherlands Netherlands
Iafrate, Giulia Italy Italy
Iani, Edoardo (Junior Member) Netherlands Netherlands
IANJAMASIMANANA, Roger South Africa Madagascar
Ianna, Philip A. United States United States
Ibadinov, Khursand I. Tajikistan Tajikistan
Ibanoglu, Cafer Turkey Turkey
Ibarra-Medel, Hector Javier (Junior Member) Mexico Mexico
Ibata, Rodrigo A France France
Iben Jr, Icko United States United States
Ibrahim, Ahmed Hafez Mohammed (Junior Member) Egypt Egypt
Ibrahim, Alaa I. United States United States
Ibrahim, Makram Ibrahim Khalil Egypt Egypt
Ibrahim, Syed M (Junior Member) India India
Ibrahimov, Mansur Russian Federation Russian Federation
Ibryamov, Sunay Bulgaria Bulgaria
ICHIKAWA, Kohei Japan Japan
ICHIKAWA , Shin-ichi Japan Japan
ICHIKAWA , Takashi Japan Japan
ICHIKI, Kiyotomo Japan Japan
ICHIMOTO, Kiyoshi Japan Japan
Icke, Vincent Netherlands Netherlands
Ideguchi, Shinsuke (Junior Member) Netherlands Netherlands
Idiart, Thais E. Brazil Brazil
Ieva, Simone Italy Italy
Iglesias, Francisco Andres (Junior Member) Argentina Argentina
Ignace, Richard United States United States
Ignesti, Alessandro (Junior Member) Italy Italy
Ignjatovi'c, Ljubinko M. Serbia, Republic of Serbia, Republic of
Igoshev, Andrei P United Kingdom United Kingdom
IGUCHI, Osamu Japan Japan
IGUCHI, Satoru Japan Japan
IIDA, Yusuke Japan Japan
Iijima, Takashi Italy Italy
IKEUCHI, Satoru Japan Japan
Ikhsanov, Nazar Robertovich Russian Federation Russian Federation
IKIZ, Tuba (Junior Member) Turkey Turkey
IKOMA, Masahiro Japan Japan
Ikonnikova, Natalia Russian Federation Russian Federation
IKUTA, Chisato Japan Japan
Ilić, Dragana Serbia, Republic of Serbia, Republic of
ILIE, Cosmin United States United States
Iliev, Ilian Khristov Bulgaria Bulgaria
Iliev, Ilian T United Kingdom United Kingdom
Iliev, Lubomir (Junior Member) Bulgaria Bulgaria
Ilin, Gennadii Nikolaevich Russian Federation Russian Federation
Il'in, Vladimir Borisovich Russian Federation Russian Federation
Illing, Rainer M.E. United States United States
Illingworth, Garth D. United States United States
Ilyasov, Sabit Uzbekistan Uzbekistan
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