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▼
Saad, Abdel-naby S. Egypt Egypt
Shaltout, Abdelrazek Mohammed Kasem Egypt Egypt
semeida, mohamed ahmed Egypt Egypt
Sanad, Magdy Rabie Egypt Egypt
Saar, Enn Estonia Estonia
Sapar, Lili Estonia Estonia
Shukure, Negessa Tilahun (Junior Member) Ethiopia Ethiopia
Salo, Heikki Finland Finland
Siltala, Lauri (Junior Member) Finland Finland
Savolainen, Tuomas Kalevi Finland Finland
Schmidt, Juergen Finland Finland
Sawala, Till Finland Finland
Sillanpaa, Aimo Kalevi Finland Finland
Sorce, Jenny G. France France
Stellmacher, Irène France France
Spoto, Federica United States France
Stcherbinine, Aurélien (Junior Member) France France
Soucail, Geneviève France France
Spallicci di Filottrano, Alessandro D.A.M. France France
Santerne, Alexandre Portugal France
Sulis, Sophia (Junior Member) France France
Samain, Denys Louis France France
Schmieder, Brigitte France France
Sanchez, Norma G. France France
Siebert, Arnaud Nicolas France France
Salomé, Philippe France France
Suer, Terry-Ann (Junior Member) United States France
Slezak, Eric France France
Stasinska, Grazyna France France
Sil, Milan (Junior Member) France France
Souchay, Jean France France
Szopa, Cyril France France
Sahal-Brechot, Sylvie France France
Sol, Helene France France
Scribano, Yohann France France
Simon, Jean-Louis France France
Semelin, Benoit France France
Stellmacher, Götz France France
Spite, Monique France France
Stehle, Chantal France France
Soubiran, Caroline France France
Strugarek, Antoine France France
Schultheis, Mathias France France
Sivan, Jean-Pierre France France
Schüssler, Fabian France France
Silk, Joseph I. France France
Stee, Philippe France France
Sicardy, Bruno France France
Stolarczyk, Thierry France France
Sauty, Christophe France France
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