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: 12769 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12399.


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Name Location▼ NCA adherence
Scardia, Marco Italy Italy
Sciortino, Salvatore Italy Italy
Scaramella, Roberto Italy Italy
Scandariato, Gaetano Italy Italy
Savaglio, Sandra Italy Italy
Sasso, Clementina Italy Italy
Sandrelli, Stefano Italy Italy
Straus, Thomas Italy Italy
Spartà, Roberta (Junior Member) Italy Italy
Santini, Paola Italy Italy
Stirpe, Giovanna M. Italy Italy
Stratta, Giulia Italy Italy
Spingola, Cristiana (Junior Member) Italy Italy
Stanghellini, Carlo Italy Italy
Shore, Steven N. Italy Italy
Strazzulla, Giovanni Italy Italy
Sánchez-Ramírez, Rubén (Junior Member) Italy Italy
Schneider, Raffaella Italy Italy
Spadaro, Daniele Italy Italy
Spavone, Marilena Italy Italy
Sidoli, Lara Italy Italy
SUSA, Hajime H Japan Japan
SHIMOJO, Masumi Japan Japan
SHIBASAKI, Kiyoto Japan Japan
SUEMATSU, Yoshinori Japan Japan
SEKIGUCHI, Kazuhiro Japan Japan
SAKON, Itsuki Japan Japan
SAKAI , Junichi Japan Japan
SORAI , Kazuo Japan Japan
SAITO, Masao Japan Japan
SAIO, Hideyuki Japan Japan
SUGAWARA, Yasuharu Japan Japan
SUTO, Yasushi Japan Japan
SUGIYAMA , Naoshi Japan Japan
SUMIYOSHI, Kosuke Japan Japan
SUMI, Takahiro Japan Japan
SHIRASAKI, Yuji Japan Japan
SUGAI, Hajime Japan Japan
SUZUKI , Tomoharu Japan Japan
SUZUKI, Takeru Ken Japan Japan
SAWAI, Hidetomo Japan Japan
SUNADA, Kazuyoshi Japan Japan
SUGITA, Seiji Japan Japan
SUGINOHARA , Tatsushi Japan Japan
SUGANUMA, Masahiro Japan Japan
SHIOYA , Yasuhiro Japan Japan
SUGIMOTO, Daiichiro Japan Japan
SHODA, Munehito (Junior Member) Japan Japan
SHIMASAKU , Kazuhiro Japan Japan
SHIBATA, Masaru Japan Japan
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