Individual Members
Professional scientists whose research is directly relevant to some branch of astronomy are eligible for election as Individual Members. Individual Members are, normally, admitted by the Executive Committee on the proposal of a National Member.
Total: 10869 Individual Members.
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
| Member | Location | NCA adherence |
| Osborne, Julian P. | United Kingdom | United Kingdom |
| Oscoz, Alejandro | Spain | Spain |
| Oskinova, Lidia M. | Germany | Germany |
| Osman, Anas Mohamed | Egypt | Egypt |
| Osmer, Patrick S. | United States | United States |
| Osório, Isabel Maria T.V.P. | Portugal | Portugal |
| Osório, José Pereira | Portugal | Portugal |
| Ossendrijver, Mathieu | Germany | Germany |
| Osten, Rachel A. | United States | United States |
| Østensen, Roy H. | Belgium | Belgium |
| Östlin, Göran T. | Sweden | Sweden |
| Ostorero, Luisa | Italy | Italy |
| Ostriker, Eve C. | United States | United States |
| Ostriker, Jeremiah P. | United States | United States |
| Ostrowski, Michal | Poland | Poland |
| Oswalt, Terry D. | United States | United States |
| OTA, Naomi | Japan | Japan |
| Othman, Mazlan | Austria | Austria |
| Otmianowska-Mazur, Katarzyna | Poland | Poland |
| OTSUKA, Masaaki | China Taipei | China Taipei |
| OTSUKI, Kaori | Japan | Japan |
| Ott, Heinz-Albert | Germany | Germany |
| Ott, Juergen A. | United States | United States |
| OUCHI , Masami | Japan | Japan |
| Oudmaijer, Rene | United Kingdom | United Kingdom |
| Ouhrabka, Miroslav | Czech Republic | Czech Republic |
| Ovcharov, Evgeni Petev | Bulgaria | Bulgaria |
| Owen, Frazer Nelson | United States | United States |
| Owen, Tobias C. | United States | United States |
| Owen Jr, William Mann | United States | United States |
| Owers, Matthew S | Australia | Australia |
| Owner-Petersen, Mette M. | Sweden | Sweden |
| Owocki, Stanley Peter | United States | United States |
| OYA, Shin | United States | United States |
| OYABU, Shinki | Japan | Japan |
| OZAKI , Masanobu | Japan | Japan |
| OZEKI , Hiroyuki | Japan | Japan |
| Özel, Mehmet Emin | Turkey | Turkey |
| Özeren, Ferhat Fikri | Turkey | Turkey |
| Özgüç, Atila | Turkey | Turkey |
| Oezisik, Tuncay | Turkey | Turkey |
| Ozkan, Mustafa Turker | Turkey | Turkey |
| Ozsv\'{a}th, Istvan | United States | United States |
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