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: 11552.  Number of Active Individual Members in the IAU Directory: 11201.


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Name Location NCA adherence▼
Olano, Carlos A. Argentina Argentina
Orsatti, Ana María Argentina Argentina
Orellana, Rosa B. Argentina Argentina
Orellana, Mariana Argentina Argentina
O'Byrne, John W. Australia Australia
Oslowski, Stefan Australia Australia
Orchiston, Wayne Australia Australia
Onken, Christopher Alan Australia Australia
O'Sullivan, Shane P Australia Australia
O'Toole, Simon J. Australia Australia
Owers, Matthew S Australia Australia
Obreschkow, Danail Australia Australia
Ortiz, Roberto Brazil Brazil
Oliveira, Alexandre S. Brazil Brazil
Ogando, Ricardo Lourenço Correia Brazil Brazil
Ovcharov, Evgeni Petev Bulgaria Bulgaria
O'Dea, Christopher P. Canada Canada
Ouellette, Nathalie Nguyen-Quoc Canada Canada
Ohnaka, Keiichi Chile Chile
Olivares Estay, Felipe Chile Chile
OTSUKA, Masaaki Japan China, Taipei
Olsen, Hans Jørn Fogh Denmark Denmark
Olsen, Erik H. Denmark Denmark
Osman, Anas Mohamed Egypt Egypt
Owis, Ashraf H Egypt Egypt
Oja, Heikki Finland Finland
Ochsenbein, François France France
Ocvirk, Pierre France France
Omont, Alain France France
Osmanov, Zaza Georgia Georgia
Ossendrijver, Mathieu Germany Germany
Oberst, Jürgen Germany Germany
Oskinova, Lidia M. Germany Germany
Ofir, Aviv Israel Germany
Olah, Katalin Ilona Hungary Hungary
Omar, Amitesh India India
Ojha, Devendra Kumar India India
Oberoi, Divya India India
O'Sullivan, Stephen Ireland Ireland
O'Sullivan, Créidhe Ireland Ireland
Ofek, Eran Oded Israel Israel
Olmi, Luca Italy Italy
Oliva, Ernesto Italy Italy
Origlia, Livia Italy Italy
Orosei, Roberto Italy Italy
Orlandini, Mauro Italy Italy
Orlando, Salvatore Italy Italy
Ortolani, Sergio Italy Italy
Orio, Marina Italy Italy
Orienti, Monica Italy Italy
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