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: 12744 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12379.


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Name▼ Location NCA adherence
Bilicki, Maciej Poland Poland
Billebaud, Francoise France France
Bilous, Anna Netherlands Netherlands
Binette, Luc Mexico Mexico
Binggeli, Bruno Switzerland Switzerland
Bingham, Robert United Kingdom United Kingdom
Binks, Alexander Slater United States United States
Binney, James Jeffrey United Kingdom United Kingdom
Binzel, Richard P. United States United States
Biretta, John Anthony United States United States
Birkby, Jayne United Kingdom Netherlands
Birkinshaw, Mark United Kingdom United Kingdom
Birkmann, Stephan M United States United States
Birlan, Mirel I. Romania Romania
Birnholtz, Ofek Italy Israel
Bíró, Barna Imre Hungary Hungary
Bisbas, Thomas G Germany Greece
Bischetti, Manuela (Junior Member) Italy Italy
Bischoff, Colin A United States United States
Bishop, Roy Lovitt Canada Canada
Bisht, Devendra (Junior Member) India India
Bisikalo, Dmitrij V. Russian Federation Russian Federation
Bisnovatyi-Kogan, Gennadij S. Russian Federation Russian Federation
Bitsakis, Theodoros United Kingdom Greece
Bittar, Jamal Lebanon Lebanon
Biver, Nicolas France France
Biviano, Andrea Italy Italy
Bizouard, Christian France France
Bjælde, Ole Eggers Denmark Denmark
Bjerkeli, Per Sweden Sweden
Björnsson, Gunnlaugur Iceland Iceland
Bjorkman, Jon E. United States United States
Bjorkman, Karen S. United States United States
Björnsson, Claes-Ingvar Sweden Sweden
Black, John Harry Sweden Sweden
Bladh, Sara Johanna Sweden Sweden
Blaga, Cristina O. Romania Romania
Blagorodnova Mujortova, Nadejda Spain Spain
Blair, David Gerald Australia Australia
Blair, Guy Norman United States United States
Blair, William P. United States United States
Blakeslee, John P. United States Canada
Blanc, Guillermo A. Chile Chile
Blanchard, Alain France France
Blanco, Armando Italy Italy
Blanco, Carlo Italy Italy
Blanco-Cuaresma, Sergi United States United States
Blandford, Roger David United States United States
Bland-Hawthorn, Jonathan Australia Australia
Blanton, Elizabeth L. United States United States
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