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 3 years will be removed from the IAU lists.

For combined Individual and Junior Members click here

For the Working Rules pertaining to Individual membership 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.

For gender statistics click here.

Total number of IAU Individual members: 11545.  Number of Active Individual Members in the IAU Directory: 11197.


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Name▼ Location NCA adherence
Omar, Amitesh India India
Omarov, Chingis Kazakhstan Kazakhstan
Omarova, Gulnara Tukenovna Kazakhstan Kazakhstan
Omizzolo, Alessandro Vatican City State Vatican City State
Omont, Alain France France
OMUKAI, Kazuyuki Japan Japan
O'Mullane, William Joseph Spain Spain
ONAKA , Takashi Japan Japan
Onello, Joseph S. United States United States
Onic, Dusan Serbia, Republic of Serbia, Republic of
ONISHI , Toshikazu Japan Japan
Onken, Christopher Alan Australia Australia
OOHARA , Ken-ichi Japan Japan
Oosterloo, Thomas Anne Netherlands Netherlands
OOTSUBO, Takafumi Japan Japan
Oozeer, Nadeem optional South Africa South Africa
Oppenheimer, Rebecca United States United States
Orchiston, Wayne Australia Australia
Orellana, Mariana Argentina Argentina
Orellana, Rosa B. Argentina Argentina
Orford, Keith United Kingdom United Kingdom
Orienti, Monica Italy Italy
Origlia, Livia Italy Italy
Orio, Marina Italy Italy
Orlandini, Mauro Italy Italy
Orlando, Salvatore Italy Italy
Orleanski, Piotr Poland Poland
Ormel, Chris W Netherlands Netherlands
Orosei, Roberto Italy Italy
Orru, Emanuela Netherlands Netherlands
Orsatti, Ana María Argentina Argentina
Ortiz, Jose L. Spain Spain
Ortiz, Roberto Brazil Brazil
Ortiz-Carbonell, Ada Norway Norway
Ortiz Gil, Amelia Spain Spain
Ortolani, Sergio Italy Italy
Orton, Glenn S. United States United States
OSAKI, Yoji Japan Japan
Osborn, Wayne United States United States
Osborne, John L. United Kingdom United Kingdom
Osborne, Julian P. United Kingdom United Kingdom
Oscoz, Alejandro Spain Spain
O'Shaughnessy, Richard W United States United States
Oskinova, Lidia M. Germany Germany
Oslowski, Stefan Australia Australia
Osman, Anas Mohamed Egypt Egypt
Osmanov, Zaza Georgia Georgia
Osmer, Patrick S. United States United States
Osório, Isabel Maria T.V.P. Portugal Portugal
Osório, José Pereira Portugal Portugal
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