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: 12738 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12372.


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Name Location▼ NCA adherence
Schaffner-Bielich, Jurgen Germany Germany
Steffen, Matthias Germany Germany
Schoenberner, Detlef Germany Germany
Strassmeier, Klaus G. Germany Germany
Schmidt, Wolfgang Germany Germany
Staude, Juergen Germany Germany
Staubert, Rüdiger Germany Germany
Staude, Hans Jakob Germany Germany
Schönherr, Gabriele Germany Germany
Stecklum, Bringfried Germany Germany
Seimenis, John Greece Greece
Sarris, Emmanuel T. Greece Greece
Sinachopoulos, Dimitris Greece Greece
Spyrou, Nicolaos Greece Greece
Sergis, Nick Greece Greece
Stathopoulou, Maria Greece Greece
Stergioulas, Nikolaos Greece Greece
Sacahui, Rodrigo Guatemala Guatemala
Szabados, Laszlo Hungary Hungary
Székely, Péter Hungary Hungary
Szegedi-Elek, Elza Hungary Hungary
Szabó, Gyula M Hungary Hungary
Szalai, Tamas Hungary Hungary
Süli, Áron László Hungary Hungary
Szatmary, Karoly Hungary Hungary
Sándor, Zsolt M Hungary Hungary
Szabo, Robert Hungary Hungary
Siwak, Michał Grzegorz Hungary Hungary
Sódor, Ádám Hungary Hungary
Saemundsson, Thorsteinn Iceland Iceland
Shah, Priya (Hasan) India India
Sengupta, Sujan K. India India
Shylaja, B. S. India India
Shastri, Prajval India India
Sachdeva, Sonali (Junior Member) India China, Nanjing
Singh, Kulinder Pal India India
Singhal, Akshat (Junior Member) India India
Sridhar, Seshadri India India
Sayamanthula, Krishna Prasad India Belgium
Subrahmanyan, Ravi India India
Sharma, Prateek India India
Sarkar, Biplob (Junior Member) India India
Sahu, Devendra Kumar India India
Saikia, Dhruba Jyoti India India
Sivaram, C. India India
Srivastava, Dhruwa Chand India India
Sur, Sharanya India India
Saurabh, Saurabh India India
Singh, Harinder P. India India
Srivastava, Mudit Kumar India India
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