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: 12738 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12372.


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Name▼ Location NCA adherence
Smith, William Hayden United States United States
Smith Castelli, Analia Viviana Argentina Argentina
Smits, Derck P. South Africa South Africa
Smolčić, Vernesa Croatia, the Republic of Croatia, the Republic of
Smole, Majda Serbia, Republic of Serbia, Republic of
Smolec, Radosław Poland Poland
Smolentsev, Sergej Georgievich Russian Federation Russian Federation
Smolinski, Jason Patrick United States United States
Smol’kov, Gennadij Ya Russian Federation Russian Federation
Smutko, Michael F United States United States
Sneden, Chris United States United States
Snegirev, Sergey D. Russian Federation Russian Federation
Snell, Ronald L. United States United States
Snellen, Ignas A.G. Netherlands Netherlands
Snigula, Jan Germany Germany
Snik, Frans Netherlands Netherlands
Snodgrass, Colin David Brodie United Kingdom United Kingdom
Snow, Martin Anthony South Africa South Africa
Snow, Theodore P. United States United States
Snowden, Michael New Zealand New Zealand
Soares, Domingos Savio de Lima Brazil Brazil
Soares de Sousa Morgado, Jorge Bruno Portugal Portugal
Sobeck, Jennifer S. United States United States
Sobey, Charlotte A (Junior Member) Australia Australia
Soboczenski, Frank (Junior Member) United Kingdom United Kingdom
Sobolev, Andrey M. Russian Federation Russian Federation
Sobolev, Yakov M. Ukraine Ukraine
Sobotka, Michal Czech Republic Czech Republic
Sobouti, Yousef Iran, Islamic Rep of Iran, Islamic Rep of
Sobral, David Portugal Portugal
Sobreira, Paulo Henrique Azevedo Brazil Brazil
Socas-Navarro, Hector Spain Spain
Soderblom, David R. United States United States
Soderblom, Jason M United States United States
Soderblom, Larry United States United States
Soderhjelm, Staffan Sweden Sweden
Sodnomsambuu, Demberel Mongolia Mongolia
Sódor, Ádám Hungary Hungary
Sodré, Laerte Brazil Brazil
Soffel, Michael H. Germany Germany
Sofia, Sabatino United States United States
Sofia, Ulysses J. United States United States
SOFIA LYKAWKA, Patryk Japan Japan
SOFUE, Yoshiaki Japan Japan
Sohn, Sangmo Tony United States United States
SOHN, Bong Won Korea, Rep of Korea, Rep of
SOHN, Young Jong Korea, Rep of Korea, Rep of
Soida, Marian Poland Poland
Soker, Noam Israel Israel
Sokół, Justyna M United States United States
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