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: 11384.  Number of Active Individual Members in the IAU Directory: 11145.


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