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: 12757 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12385.


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Name Location NCA adherence▼
Sandin, Christer Germany Germany
Schilke, Peter Germany Germany
Scorza, Cecilia Germany Germany
Sieber, Wolfgang Germany Germany
Schuh, Harald Germany Germany
Staubert, Rüdiger Germany Germany
Seidel, Julia Victoria (Junior Member) Chile Germany
Santangelo, Andrea Germany Germany
Salvato, Mara Germany Germany
Springel, Volker Germany Germany
Schou, Jesper Germany Germany
Staude, Hans Jakob Germany Germany
Schaffner-Bielich, Jurgen Germany Germany
Salimpour, Saeed (Junior Member) Australia Germany
Sanchez-Monge, Alvaro Germany Germany
Sinachopoulos, Dimitris Greece Greece
Seimenis, John Greece Greece
Siopis, Christos Belgium Greece
Stathopoulou, Maria Greece Greece
Sergis, Nick Greece Greece
Spyrou, Nicolaos Greece Greece
Stergioulas, Nikolaos Greece Greece
Sarris, Emmanuel T. Greece Greece
Sacahui, Rodrigo Guatemala Guatemala
Szabados, Laszlo Hungary Hungary
Sódor, Ádám Hungary Hungary
Szalai, Tamas Hungary Hungary
Szegedi-Elek, Elza Hungary Hungary
Székely, Péter Hungary Hungary
Szabó, Gyula M Hungary Hungary
Szatmary, Karoly Hungary Hungary
Süli, Áron László Hungary Hungary
Siwak, Michał Grzegorz Hungary Hungary
Sándor, Zsolt M Hungary Hungary
Szabo, Robert Hungary Hungary
Saemundsson, Thorsteinn Iceland Iceland
Subramaniam, Annapurni India India
Sivaram, C. India India
Sastry, Ch. V. India India
Sastri, Hanumath J. India India
Shah, Priya (Hasan) India India
Singh, Kulinder Pal India India
Sarkar, Biplob (Junior Member) India India
Sahu, Devendra Kumar India India
Shylaja, B. S. India India
Singh, Gaurav (Junior Member) India India
Shastri, Prajval India India
Souradeep, Tarun India India
Sharma, Mohit Kumar (Junior Member) India India
Subrahmanyan, Ravi India India
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