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
Simionescu, Aurora Netherlands Netherlands
Saifollahi, Teymoor (Junior Member) Netherlands Netherlands
Shulevski, Aleksandar (Junior Member) Netherlands Netherlands
Schaye, Joop Netherlands Netherlands
Santiago Rodrigues, Luiz Felippe Netherlands Netherlands
Szomoru, Arpad Netherlands Netherlands
Savonije, Gertjan Netherlands Netherlands
Stuik, Remko Netherlands Netherlands
Schulz, Rita M. Netherlands Germany
Stam, Daphne M Netherlands Netherlands
Shipman, Russell F. Netherlands Netherlands
Snik, Frans Netherlands Netherlands
Sundararajan, Pavithraa (Junior Member) Netherlands Netherlands
Sancisi, Renzo Netherlands Italy
Snellen, Ignas A.G. Netherlands Netherlands
Sanders, Robert Netherlands Netherlands
Salmi, Tuomo (Junior Member) Netherlands Netherlands
Stolker, Tomas (Junior Member) Netherlands Netherlands
Snowden, Michael New Zealand New Zealand
Stevance, Heloise F (Junior Member) New Zealand New Zealand
Sweatman, Winston L. New Zealand New Zealand
Steel, Duncan I. New Zealand New Zealand
Saberi, Maryam (Junior Member) Norway Norway
Szydlarski, Mikolaj Marcin (Junior Member) Norway Norway
Shen, Sijing Norway Norway
Solheim, Jan Erik Norway Norway
Skjæraasen, Olaf Norway Norway
Silva, Marta Bruno (Junior Member) Norway Netherlands
Saenz, Eduardo Panama Panama
Soriano, Bernardo M. Philippines Canada
Sese, Rogel Mari D. Philippines Philippines
Schwarzenberg-Czerny, Alex Poland Poland
Stawikowski, Antoni Poland Poland
Swaczyna, Pawel (Junior Member) Poland Poland
Skowron, Dorota M Poland Poland
Sylwester, Janusz A. Poland Poland
Szewczuk, Wojciech (Junior Member) Poland Poland
Sikora, Marek Poland Poland
Smak, Józef I. Poland Poland
Schreiber, Roman Poland Poland
Skowron, Jan Poland Poland
Szutowicz, Sławomira E. Poland Poland
Siarkowski, Marek Poland Poland
Stępień, Kazimierz Szczepan Poland Poland
Soltan, Andrzej Maria Poland Poland
Strobel, Andrzej Poland Poland
Soszyński, Igor Poland Poland
Soida, Marian Poland Poland
Sokołowski, Lech Poland Poland
Smolec, Radosław Poland Poland
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