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
Battino, Umberto (Junior Member) United Kingdom United Kingdom
Battisti, Andrew J (Junior Member) Australia Australia
Battye, Richard A. United Kingdom United Kingdom
Baturin, Vladimir A. Russian Federation Russian Federation
Baù, Giulio Italy Italy
Baud, Boudewijn Netherlands Netherlands
Baudry, Alain France France
Bauer, Amanda E. United States Australia
Bauer, James United States United States
Bauer, Wendy H. United States United States
Baug, Tapas (Junior Member) China, Nanjing India
Baum, Stefi Alison United States United States
Baume, Gustavo L. Argentina Argentina
Baumgardt, Holger Australia Australia
Baumjohann, Wolfgang Austria Austria
Bauswein, Andreas Germany Germany
Bautista, Manuel A. United States United States
Baym, Gordon Alan United States United States
Bayo, Amelia M Germany Chile
Bazin, Cyrille France France
Bazot, Michael Portugal Portugal
Bazzano, Angela Italy Italy
Beamin, Juan Carlos Chile Chile
Bear, Ealeal Israel Israel
Beasley, Anthony James United States United States
Beaugé, Cristian Argentina Argentina
Beaulieu, Jean-Philippe R. France France
Beaulieu, Sylvie F. Canada Canada
Beavers, Willet I. United States United States
Becciani, Ugo Italy Italy
Becerra, Rosa Leticia (Junior Member) Italy Mexico
Becherini, Yvonne Sweden Sweden
Bechet, Sabrina Belgium Belgium
Bechtold, Jill United States United States
Beck, Geoff South Africa South Africa
Beck, Paul G. Spain Spain
Beck, Rainer Germany Germany
Beck, Sara C. Israel Israel
Becker, Andrew Cameron United States United States
Becker, George D United States United States
Becker, Robert Howard United States United States
Becker, Stephen A. United States United States
Becker, Werner Germany Germany
Becklin, Eric E. United States United States
Beckman, John Etienne Spain Spain
Beckmann, Volker France France
Beckwith, Steven V.W. United States United States
Bedding, Timothy R. Australia Australia
BEDIN, Luigi R. Italy Italy
Beebe, Reta Faye United States United States
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