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: 12740 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12374.


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Name▼ Location NCA adherence
AHN, SANG-HYEON Korea, Rep of Korea, Rep of
AHN, Youngsook Korea, Rep of Korea, Rep of
Ahumada, Andrea Verónica Argentina Argentina
Ahumada, Javier Alejandro Argentina Argentina
AI, Guoxiang China, Nanjing China, Nanjing
Aidelman, Yael Judith Argentina Argentina
Aigrain, Suzanne United Kingdom United Kingdom
AIKAWA, Toshiki Japan Japan
AIKAWA, Yuri Japan Japan
Aikman, G. Chris L. Canada Canada
Aime, Claude France France
Aimuratov, Yerlan Kairatovich (Junior Member) Kazakhstan Kazakhstan
Ainul Annuar, Nur Adlyka Malaysia Malaysia
Airapetian, Vladimir United States United States
Ait Moulay Larbi, El mamoun (Junior Member) Morocco Morocco
Aizenman, Morris L. United States United States
A.J., Nayana (Junior Member) India India
Ajhar, Edward A. United States United States
Ajith, Parameswaran India India
AK, Serap Turkey Turkey
AK, Tansel Turkey Turkey
AKAHORI, Takuya Japan Japan
Akalu, Shambel Sahlu (Junior Member) Ethiopia Ethiopia
Akan, Mustafa Can Turkey Turkey
Akashi, Muhammad Saeed Israel Israel
Ake III, Thomas Bellis United States United States
Akeson, Rachel United States United States
Akhlaghi, Mohammad (Junior Member) Spain Spain
Akhmetov, Volodymyr Sabirdjanovich Ukraine Ukraine
Akimkin, Vitaly Russian Federation Russian Federation
AKITA, Kyo L. Japan Japan
AKITAYA, Hiroshi Japan Japan
Akiyama, Kazunori United States United States
AKIYAMA, Eiji Japan Japan
AKIYAMA, Masayuki Japan Japan
AKRAS, STAVROS Greece Brazil
Aksaker, Nazım Turkey Turkey
Aksnes, Kaare Norway Norway
Aktekin Çalışkan, Ebru Turkey Turkey
Akujor, Chidi Emmanuel Nigeria Nigeria
Akyuz, Aysun Turkey Turkey
Aladro Fernandez, Rebeca Germany Germany
Alard, Christophe L. France France
Alassiry, Muhammed Hamdi Syrian Arab Republic Syrian Arab Republic
Alatalo, Katherine A United States United States
Alberdi, Antonio Spain Spain
Albert, Justin E Canada Canada
Albert, Loïc Canada Canada
Albrecht, Rudolf Germany Germany
Albrow, Michael New Zealand New Zealand
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