Individual 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.

Individual 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 10 years will be removed from the IAU lists.

For combined Individual and Junior Members click here

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.

Total number of IAU Individual members:13128.


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Name▼ Location NCA adherence
Siess, Lionel Belgium Belgium
Sievers, Jonathan South Africa South Africa
Sigalotti, Leonardo G. Venezuela Venezuela
Sigismondi, Costantino Italy Italy
Signore, Monique France France
Sigurdsson, Steinn United States United States
Sigut, T. A. Aaron Canada Canada
Sigwarth, Michael Germany Germany
SIHER, El Arbi Morocco Morocco
Sikora, Marek Poland Poland
Sikorski, Jerzy (Inactive) Poland Poland
Silant’ev, Nikolaj A. (Inactive) Russian Federation Russian Federation
Silberberg, Rein, Deceased United States
Sil'chenko, Olga K. Russian Federation Russian Federation
Silich, Sergey Mexico Mexico
Silk, Joseph I. France France
Sillanpaa, Aimo Kalevi Finland Finland
Sills, Alison I. Canada Canada
Silva, David Richard United States United States
Silva, Laura Italy Italy
Silva Aguirre, Victor Denmark Denmark
Silva-Villa, Esteban Colombia Colombia
Silverberg, Eric C. (Inactive) United States United States
Silvestro, Giovanni (Inactive) Italy Italy
Silvotti, Roberto Italy Italy
Sim, Elizabeth Mary (Inactive) United Kingdom United Kingdom
SIM, Chae Kyung Korea, Rep of Korea, Rep of
Sima, Zdislav Czech Republic Czech Republic
Simek, Milos (Inactive) Czech Republic Czech Republic
Simic, Sasa Serbia, Republic of Serbia, Republic of
Simić, Zoran J Serbia, Republic of Serbia, Republic of
Simien, François (Inactive) France France
Simkin, Susan M. United States United States
Simmons, John Francis L. Luxembourg AA-Country unknown
Simnett, George M. United Kingdom United Kingdom
Simo, Carles Spain Spain
SIMODA , Mahiro (Inactive) Japan Japan
Simoes, Paulo J. A. Brazil United Kingdom
Simon, Amy Ann United States United States
Simon, George W. (Inactive) United States United States
Simon, Guy (Inactive) France France
Simon, Jean-Louis France France
Simon, Klaus Peter (Inactive) Germany Germany
Simon, Michal United States United States
Simon, Norman R. (Inactive) United States United States
Simon, Patrick Germany Germany
Simon, Paul (Inactive) France France
Simon, Paul C. Belgium Belgium
Simon, Rene L.E. (Inactive) Belgium Belgium
Simon, Theodore United States United States
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