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
Clavel, Jean Netherlands Netherlands
Clavel, Maïca France France
Clay, Roger Australia Australia
Clayton, Donald D. United States United States
Clear, Christian (Junior Member) United Kingdom United Kingdom
Cleeves, Lauren Ilsedore United States United States
Clegg, Andrew W. United States United States
Clegg, Robin E.S. United Kingdom United Kingdom
Clem, James L. United States United States
Clemens, Dan P. United States United States
Clement, Christine Canada Canada
Clementini, Gisella Italy Italy
Clements, David L United Kingdom United Kingdom
Clesse, Sébastien Belgium Belgium
Clette, Frederic Belgium Belgium
Cliver, Edward W. United States United States
Clocchiatti, Alejandro Chile Chile
Close, Sigrid United States United States
Clowe, Douglas I. United States United States
Clowes, Roger G. United Kingdom United Kingdom
Clube, Kim L. United Kingdom United Kingdom
Cluver, Michelle E. Australia Australia
Coates, Andrew J United Kingdom United Kingdom
Cochran, Anita L. United States United States
Cochran, William David United States United States
Codella, Claudio Italy Italy
Cofano, Alessandra (Junior Member) Italy Italy
Coffey, Deirdre Ireland Ireland
Coffey, Helen E. United States United States
Cohen, Ariel Israel Israel
Cohen, David H United States United States
Cohen, Judith United States United States
Cohen, Marshall H. United States United States
Cohen, Roger E United States United States
Colangeli, Luigi Netherlands Netherlands
Colas, François France France
Colazo, Marcelo Eduardo Argentina Argentina
Coldwell, Georgina Argentina Argentina
Cole, Andrew Alexander Australia Australia
Cole, David Ronald United Kingdom United Kingdom
Cole, Shaun M. United Kingdom United Kingdom
Coles, Peter Ireland Ireland
Colin, Jacques France France
Colina, Luis Spain Spain
Collacchioni, Florencia (Junior Member) Argentina Argentina
Collados, Manuel Spain Spain
Colless, Matthew Australia Australia
Collet, Remo Denmark Australia
Collin, Suzy France France
Collinge, Matt United States United States
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