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: 12425 (of which 1084 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12090.


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Name Location▼ NCA adherence
Schuller, Peter A. Germany Germany
Schlickeiser, Reinhard Germany Germany
Spyrou, Nicolaos Greece Greece
Sinachopoulos, Dimitris Greece Greece
Sergis, Nick Greece Greece
Stergioulas, Nikolaos Greece Greece
Stathopoulou, Maria Greece Greece
Seimenis, John Greece Greece
Sarris, Emmanuel T. Greece Greece
Sacahui, Rodrigo Guatemala Guatemala
Süli, Áron László Hungary Hungary
Szalai, Tamas Hungary Hungary
Szabó, Gyula M Hungary Hungary
Siwak, Michał Grzegorz Hungary Hungary
Szabados, Laszlo Hungary Hungary
Sódor, Ádám Hungary Hungary
Sándor, Zsolt M Hungary Hungary
Szatmary, Karoly Hungary Hungary
Szegedi-Elek, Elza Hungary Hungary
Szabo, Robert Hungary Hungary
Székely, Péter Hungary Hungary
Saemundsson, Thorsteinn Iceland Iceland
Saikia, Dhruba Jyoti India India
Saha, Swapan Kumar India India
Srinivasan, Ganesan India India
Sreekumar, Parameswaran India India
Sreenath, V. India India
Srivastava, Dhruwa Chand India India
Sinha, Krishnanand India India
Singh, Harinder P. India India
Sharma, Prateek India India
Sridhar, Seshadri India India
Srianand, Raghunathan India India
Subramanian, Prasad India India
Sahni, Varun India India
Sule, Aniket Prakash India India
Shastri, Prajval India India
Singh, Kunwar Alkendra Pratap India India
Sonkamble, Satish Shripati (Junior Member) India India
Sreeramulu, Sujatha India India
Sivaram, C. India India
Sarkar, Prakash India India
Srivastava, Abhishek Kumar India India
Sathyanarayana Rao, Mayuri (Junior Member) India United States
Sagar, Ram India India
Samal, Manash Ranjan India India
Stephens, S. A. India India
Subramanian, Kandaswamy India India
Souradeep, Tarun India India
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