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: 11553.  Number of Active Individual Members in the IAU Directory: 11202.


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Name Location▼ NCA adherence
Obregón Díaz, Octavio José Mexico Mexico
Olguín, Lorenzo Mexico Mexico
Offringa, André René Netherlands Netherlands
Orru, Emanuela Netherlands Netherlands
Ormel, Chris W Netherlands Netherlands
Oosterloo, Thomas Anne Netherlands Netherlands
Overzier, Roderik A. Netherlands Netherlands
Olthof, Henk Netherlands Netherlands
Okeke, Pius N. Nigeria Nigeria
Okpala, Kingsley C. Nigeria Nigeria
Okeke, Francisca N. Nigeria Nigeria
Østensen, Roy H. Norway Norway
Ortiz-Carbonell, Ada Norway Norway
Oikonomou, Foteini Norway Norway
Ostrowski, Michał Poland Poland
Oszkiewicz, Dagmara Anna Poland Poland
Ogłoza, Waldemar Poland Poland
Orleanski, Piotr Poland Poland
Osório, José Pereira Portugal Portugal
Osório, Isabel Maria T.V.P. Portugal Portugal
Obridko, Vladimir N. Russian Federation Russian Federation
Onic, Dusan Serbia, Republic of Serbia, Republic of
Oozeer, Nadeem optional South Africa South Africa
Osorio, Mayra Spain Spain
Ortiz, Jose L. Spain Spain
Oliver, Ramón Spain Spain
O'Mullane, William Joseph Spain Spain
Ortiz Gil, Amelia Spain Spain
Oscoz, Alejandro Spain Spain
Oja, Tarmo Sweden Sweden
Olberg, Michael Sweden Sweden
Olofsson, Goeran S. Sweden Sweden
Olofsson, Hans Sweden Sweden
Olofsson, Kjell Sweden Sweden
Östlin, Göran T. Sweden Sweden
Olofsson, Henrik A.O. Sweden Sweden
O'Connor, Evan P Sweden Sweden
Oesch, Pascal A Switzerland Switzerland
Ozguc, Atila Turkey Turkey
OZKARDES, Burcu Turkey Turkey
OZDEMIR, Sacit Turkey Turkey
Ozkan, Mustafa Turker Turkey Turkey
Özışık, Tuncay Turkey Turkey
Özel, Mehmet Emin Turkey Turkey
Odeh, Mohammad Sh. United Arab Emirates United Arab Emirates
Ozbey Arabaci, Mehtap United Kingdom Turkey
Osborne, Julian P. United Kingdom United Kingdom
Oudmaijer, Rene United Kingdom United Kingdom
Osborne, John L. United Kingdom United Kingdom
Olivier, Enrico Adrian United Kingdom South Africa
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