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: 12425 (of which 1084 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12090.


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Name▼ Location NCA adherence
CHEN, Yang China, Nanjing China, Nanjing
CHEN, Yang China, Nanjing China, Nanjing
CHEN, Yongjun China, Nanjing China, Nanjing
CHEN, Yuqin China, Nanjing China, Nanjing
CHEN, Zhijun China, Nanjing China, Nanjing
CHEN, Zhiyuan China, Nanjing China, Nanjing
Chené, André-Nicolas United States United States
Chenevez, Jérôme Denmark Denmark
CHENG, Fuzhen China, Nanjing China, Nanjing
CHENG, Kwang Ping United States United States
CHENG, Kwongsang China, Nanjing China, Nanjing
CHENG, Xin China, Nanjing China, Nanjing
CHENG, Xuan (Junior Member) China, Nanjing China, Nanjing
Chengalur, Jayaram N. India India
Cherchneff, Isabelle Switzerland Switzerland
Cherepashchuk, Anatolij M. Russian Federation Russian Federation
Cherman, Alexandre Brazil Brazil
Chernetenko, Yulia A. Russian Federation Russian Federation
Chernov, Gennadij P. Russian Federation Russian Federation
Chernov, Sergey Russian Federation Russian Federation
Chernyakova, Maria Ireland Ireland
Chertok, Ilya M. Russian Federation Russian Federation
Chesley, Steven R. United States United States
Cheung, Chi (Teddy) C United States United States
CHEUNG, Sze-leung Thailand Japan
Chevalier, Roger A. United States United States
Chevrel, Serge France France
Chian, Abraham Chian-Long Brazil Brazil
Chiang, Hsin Cynthia Canada South Africa
CHIANG, Lung-Yih China, Taipei China, Taipei
Chiappetti, Lucio Italy Italy
Chiappini, Cristina Germany Germany
Chiar, Jean E United States United States
Chiavassa, Andrea France France
CHIBA, Masashi Japan Japan
CHIBA, Takeshi Japan Japan
Chibueze, James Okwe South Africa South Africa
Chies Santos, Ana L. Brazil Brazil
CHIHARA, Hiroki Japan Japan
CHIKADA , Yoshihiro Japan Japan
CHIKAWA, Michiyuki Japan Japan
CHIN, Yi-nan China, Taipei China, Taipei
Chinarova, Lidiia L. Ukraine Ukraine
Chincarini, Guido L. Italy Italy
Chini, Rolf Germany Germany
Chinnici, Ileana Italy Italy
Chintzoglou, Georgios United States United States
Chiosi, Cesare S. Italy Italy
Chiruta, Ciprian Romania Romania
Chisari, Nora Elisa Netherlands Netherlands
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