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: 12777 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12404.


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Name Location▼ NCA adherence
Salvador-Sole, Eduardo Spain Spain
Sanchez-Portal, Miguel Spain Spain
Sein-Echaluce, M. Luisa Spain Spain
Santos-Lleo, Maria Spain Spain
Sanchez Contreras, Carmen Spain Spain
Stanishev, Vallery D. Sweden Portugal
Stenberg Wieser, Gabriella Sweden Sweden
Sahlen, Martin Sweden Sweden
Sollerman, Jesper Sweden Sweden
Sandqvist, Aage Sweden Sweden
Stempels, Eric Sweden Sweden
Soderhjelm, Staffan Sweden Sweden
Sundin, Maria I. Sweden Sweden
Scharmer, Goeran Bjarne Sweden Sweden
Stenholm, Björn Sweden Sweden
Schmutz, Werner Switzerland Switzerland
Stadel, Joachim Gerhard Switzerland Switzerland
Sterken, Veerle J. Switzerland Switzerland
Saha, Prasenjit Switzerland Switzerland
Sargent, Mark Thomas Switzerland United Kingdom
Stenflo, Jan Olof Switzerland Switzerland
Sharma, Rohit (Junior Member) Switzerland Switzerland
Straumann, Norbert Switzerland Switzerland
Schaerer, Daniel Switzerland Switzerland
Schober, Jennifer (Junior Member) Switzerland Switzerland
Ségransan, Damien Switzerland Switzerland
Schildknecht, Thomas Switzerland Switzerland
Schmid, Hans Martin Switzerland Switzerland
Schawinski, Kevin Switzerland Switzerland
Shoyoqubov, Shoayub Tajikistan Tajikistan
Siritanasak, Praween (Junior Member) Thailand Thailand
Sanguansak, Nuanwan - Thailand Thailand
Surina, Farung Thailand Thailand
Sawangwit, Utane Thailand Thailand
Saiz, Alejandro Thailand Thailand
Suwannajak, Chutipong (Junior Member) Thailand Thailand
Soonthornthum, Boonrucksar Thailand Thailand
Saguner Rambaldi, Tenay Turkey Turkey
Selam, Selim O. Turkey Turkey
Sezer, Aytap Turkey Turkey
Sonbas, Eda Turkey Turkey
Saygac, Ahmet Talat Turkey Turkey
Slyusarev, Ivan G. Ukraine Ukraine
Skulskyj, Mychajlo Y. Ukraine Ukraine
Shepelev, Valeriy Ukraine Ukraine
Stanislavsky, Aleksander Ukraine Ukraine
Savanevych, Vadym Yevgenievych Ukraine Ukraine
Shchukina, Nataliia Gennadievna Ukraine Ukraine
Sheminova, Valentina A. Ukraine Ukraine
Shakun, Leonid S Ukraine Ukraine
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