Individual 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.

Individual 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 10 years will be removed from the IAU lists.

For combined Individual and Junior Members click here

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.

Total number of IAU Individual members:13127.


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Name▼ Location NCA adherence
Simon, Vojtech Czech Republic Czech Republic
Simon-Diaz, Sergio Spain Spain
Simonenko, Alla N., Deceased (1935-1984) Russian Federation
Simonia, Irakli Georgia Georgia
Simoniello, Rosaria Switzerland Switzerland
Simonneau, Eduardo (Inactive) France France
Simons, Douglas A. United States United States
Simons, Stuart (Inactive) United Kingdom United Kingdom
Simonson, S. Christian United States United States
Simovljevitch, Jovan L., Deceased (1929-2007) Serbia, Republic of
Simpson, Allen D.C. (Inactive) United Kingdom United Kingdom
Sims, Kenneth P., Deceased Australia
Sims, Mark R. United Kingdom United Kingdom
Simunac, Kristin Diane Commer United States United States
Sinachopoulos, Dimitris Greece Greece
Sinclair, Andrew T. (Inactive) United Kingdom United Kingdom
Singal, Ashok K. India India
Singh, Harinder P. India India
Singh, Jagdev India India
Singh, Kulinder Pal India India
Singh, Mahendra (Inactive) India India
Singh, Markandey (Inactive) India India
Singh, Patan Deen, Deceased AA-Country unknown
Singh, Veeresh India India
Sinha, Krishnanand India India
Sinha, Manodeep Australia Australia
Sinha, Rameshwar P. United States United States
Sinnerstad, Ulf E., Deceased (1914-) Sweden
Sinton, William M., Deceased (1925-) United States
Sinvhal, Shambhu Dayal (Inactive) India India
SINZI, Akira M., Deceased Japan
Sion, Edward Michael United States United States
Siopis, Christos Belgium Greece
Siregar, Suryadi, Deceased (1951-2018) Indonesia
Siringo, Giorgio Chile Chile
Siroky, Jaromir, Deceased Czech Republic
Sironi, Giorgio (Inactive) Italy Italy
Sirousse, Zia Haydeh (Inactive) France France
Siry, Joseph W., Deceased United States
Sisson, George M., Deceased (1914-) United Kingdom
Sisteró, Roberto Félix, Deceased (1939-2016) Argentina
Sitarski, Grzegorz, Deceased (1932-2015) Poland
Sitko, Michael L. United States United States
Sivakoff, Gregory Robert Canada Canada
Sivan, Jean-Pierre France France
Sivanandam, Suresh Canada Canada
Sivaram, C. India India
Sivaraman, Koduvayur R. United States United States
Sivarani, Thirupathi India India
Sizonenko, Yuri V. Ukraine Ukraine
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