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
Soker, Noam Israel Israel
Sokół, Justyna M United States United States
Sokoloski, Jennifer (Jeno) L United States United States
Sokolov, Leonid L. Russian Federation Russian Federation
Sokolov, Vladimir V. Russian Federation Russian Federation
Sokolova, Marina Gennad'evna Russian Federation Russian Federation
Sokołowski, Lech Poland Poland
Sol, Helene France France
Solanes, Josep M. Spain Spain
Solanki, Sami K. Germany Germany
Solano, Enrique Spain Spain
Solarić, Nikola Croatia, the Republic of Croatia, the Republic of
Solc, Martin Czech Republic Czech Republic
Soler, Juan Diego Germany Germany
Soler, Roberto Spain Spain
Solheim, Jan Erik Norway Norway
Solivella, Gladys R. Argentina Argentina
Sollerman, Jesper Sweden Sweden
Solovaya, Nina A. Russian Federation Russian Federation
Soloviev, Alexandr A. Russian Federation Russian Federation
Solovyeva, Yulia (Junior Member) Russian Federation Russian Federation
Soltan, Andrzej Maria Poland Poland
Soltynski, Maciej G South Africa South Africa
SOMA, Mitsuru Japan Japan
SOMANAH, Radhakhrishna Mauritius AA-Country unknown
Somasundaram, Seetha India India
Somerville, Rachel United States United States
Sonbas, Eda Turkey Turkey
Song, Yiqing (Junior Member) Chile Germany
SONG, In-Ok Korea, Rep of Korea, Rep of
SONG, In-Ung (Junior Member) Korea, Rep of Korea, Rep of
SONG, Liming China, Nanjing China, Nanjing
SONG, Qian China, Nanjing China, Nanjing
SONG, Shuli China, Nanjing China, Nanjing
SONG, Yihan (Junior Member) China, Nanjing China, Nanjing
SONG, Yongliang (Junior Member) China, Nanjing China, Nanjing
SONG, Yong-Seon Korea, Rep of Korea, Rep of
Sonkamble, Satish Shripati (Junior Member) India India
Sonneborn, George United States United States
Sonnenfeld, Alessandro China, Nanjing Netherlands
Sonnentrucker, Paule Geraldine United States United States
Soo, John Yue Han (Junior Member) Malaysia Malaysia
Sood, Ravi Australia Australia
Soonthornthum, Boonrucksar Thailand Thailand
SORAI , Kazuo Japan Japan
Soraisam, Monika D (Junior Member) United States United States
Sorce, Jenny G. France France
Sorensen, Soren-Aksel United Kingdom United Kingdom
Sorgho, Amidou (Junior Member) South Africa South Africa
Soria, Roberto China, Nanjing Australia
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