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: 12754 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12383.


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Name Location▼ NCA adherence
SETA, Masumichi Japan Japan
SOFIA LYKAWKA, Patryk Japan Japan
Shestakova, Lyubov Illarionovna Kazakhstan Kazakhstan
Shukirgaliyev, Bekdaulet Kazakhstan Kazakhstan
Serebryanskiy, Aleksander Kazakhstan Kazakhstan
Shomshekova, Saule Ahmetbekovna (Junior Member) Kazakhstan Kazakhstan
SHIM, Hyunjin Korea, Rep of Korea, Rep of
SONG, Yong-Seon Korea, Rep of Korea, Rep of
SOHN, Bong Won Korea, Rep of Korea, Rep of
SOHN, Young Jong Korea, Rep of Korea, Rep of
SUNG, Suk-Kyung Korea, Rep of Korea, Rep of
SUNG, Hyun-Il Korea, Rep of Korea, Rep of
SAULDER, Christoph (Junior Member) Korea, Rep of Korea, Rep of
SONG, In-Ung (Junior Member) Korea, Rep of Korea, Rep of
SEON, Kwang il Korea, Rep of Korea, Rep of
SEO, Haingja Korea, Rep of Korea, Rep of
SHIN, Junho Korea, Rep of Korea, Rep of
SIM, Chae Kyung Korea, Rep of Korea, Rep of
SHINN, Jong-Ho Korea, Rep of Korea, Rep of
Suh, Kyung-Won Korea, Rep of Korea, Rep of
SONG, In-Ok Korea, Rep of Korea, Rep of
Smelds, Ivar Latvia Latvia
Salītis, Antonijs Latvia Latvia
Sabra, Bassem Mohamad Lebanon Lebanon
Stonkutė, Rima Lithuania Lithuania
Stonkutė, Edita Lithuania Lithuania
Sudzius, Jokubas Lithuania Lithuania
Simmons, John Francis L. Luxembourg AA-Country unknown
Soo, John Yue Han (Junior Member) Malaysia Malaysia
Sabri, Nor Hazmin Malaysia Malaysia
SOMANAH, Radhakhrishna Mauritius AA-Country unknown
Sabin, Laurence Mexico Mexico
Schuster, William John Mexico Mexico
Sanchez Sanchez, Sebastian Francisco Mexico Mexico
Segura, Antigona Mexico Mexico
Silich, Sergey Mexico Mexico
Saucedo Morales, Julio Cesar Mexico Mexico
Srinivasan, Sundar Mexico Mexico
Santillán, Alfredo J. Mexico Mexico
Schroeder, Klaus Peter Mexico Mexico
Sánchez, Leonardo Javier Mexico Mexico
Sodnomsambuu, Demberel Mongolia Mongolia
SIHER, El Arbi Morocco Morocco
SABIL, Mohammed Morocco Morocco
Steenkamp, Riaan Namibia South Africa
Szomoru, Arpad Netherlands Netherlands
Shipman, Russell F. Netherlands Netherlands
Snellen, Ignas A.G. Netherlands Netherlands
Snik, Frans Netherlands Netherlands
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