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 10 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.

Total number of IAU Individual and Junior members: 13587 (of which 533 Junior members). Number of Active Individual and Junior Members in the IAU Directory: 11098.


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Name▼ Location NCA adherence
Cernis, Kazimieras Lithuania Lithuania
Cerroni, Priscilla Italy Italy
Cersosimo, Juan Carlos United States United States
Cervino, Miguel Spain Spain
Cesarsky, Catherine Jeanne France France
Cesarsky, Diego Alberto France France
Cescutti, Gabriele Italy Italy
Cesetti, Mary Italy Italy
CHA, Seung-Hoon United States United States
Chabab, Mohamed Morocco Morocco
Chaboyer, Brian C. United States United States
Chabrier, Gilles France France
Chadid, Merieme France France
CHAE, Jongchul Korea, Rep of Korea, Rep of
CHAE, Kyu Hyun Korea, Rep of Korea, Rep of
Chainakun, Poemwai (Junior Member) Thailand Thailand
Chaisson, Eric J. United States United States
Chakrabarti, Sandip Kumar India India
Chakrabarti, Supriya United States United States
Chakrabarty, Deepto United States United States
Chakraborty, Deo K. India India
Chalermsongsak, Tara Thailand Thailand
Chamaraux, Pierre France France
Chambers, John E. United States United States
Chambers, Kenneth C United States United States
Chambliss, Carlson R. United States United States
Chamcham, Khalil United Kingdom United Kingdom
Chamel, Nicolas Belgium Belgium
Champion, David John Germany Germany
Chan, James Hung-Hsu (Junior Member) Switzerland Switzerland
Chan, Roberto Brazil Brazil
CHAN, Kwing Lam China, Nanjing China, Nanjing
Chance, Kelly V. United States United States
Chandler, Claire United States United States
Chandra, Poonam India India
Chandra, Ramesh India India
Chandra, Suresh India India
Chandrasekhar, Thyagarajan India India
CHANG, Chan-Kao China, Taipei China, Taipei
CHANG, Heon-Young Korea, Rep of Korea, Rep of
CHANG, Hong China, Nanjing China, Nanjing
CHANG, Hsiang-Kuang China, Taipei China, Taipei
CHANG, Kyongae Korea, Rep of Korea, Rep of
CHANG, Ruixiag China, Nanjing China, Nanjing
Channok, Chanruangrit Thailand Thailand
Chantavat, Teeraparb Thailand Thailand
Chao, Benjamin F. China, Taipei China, Taipei
Chapanov, Yavor Bulgaria Bulgaria
Chaparro, German Colombia Colombia
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