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 |
| Úbeda, Leonardo | United States | United States |
| Ubertini, Pietro | Italy | Italy |
| UCHIDA , Juichi | Japan | Japan |
| ud-Doula, Asif | United States | United States |
| Udalski, Andrzej | Poland | Poland |
| Udaya, Shankar N. | India | India |
| Uddin, Wahab | India | India |
| Udovichenko, Sergei N. | Ukraine | Ukraine |
| Udry, Stephane | Switzerland | Switzerland |
| UEDA, Haruhiko | Japan | Japan |
| UEDA , Yoshihiro | Japan | Japan |
| UEMURA , Makoto | Japan | Japan |
| UENO, Munetaka | Japan | Japan |
| UESUGI , Akira | Japan | Japan |
| Ueta, Toshiya | United States | United States |
| Ugolnikov, Oleg Stanislavovich | Russian Federation | Russian Federation |
| UKITA , Nobuharu | Japan | Japan |
| Ulfbeck, Ole C. | Denmark | Denmark |
| Ulich, Bobby Lee | United States | United States |
| Ulla Miguel, Ana Maria | Spain | Spain |
| Ulmer, Melville P. | United States | United States |
| Ulmschneider, Peter | Germany | Germany |
| Ulrich, Marie-Helene D. | Germany | Germany |
| Ulrich, Roger K. | United States | United States |
| Ulvestad, James Scott | United States | United States |
| Ulyanov , Oleg Mihajlovich | Ukraine | Ukraine |
| Umana, Grazia | Italy | Italy |
| UMEDA, Hideyuki | Japan | Japan |
| UMEMOTO , Tomofumi | Japan | Japan |
| UMEMURA , Masayuki | Japan | Japan |
| Umlenski, Vasil | Bulgaria | Bulgaria |
| Unda-Sanzana, Eduardo | Chile | Chile |
| Underwood, James H. | United States | United States |
| Unger, Stephen | Spain | Spain |
| UNNO , Wasaburo | Japan | Japan |
| Unwin, Stephen C. | United States | United States |
| Uomoto, Alan | United States | United States |
| Upgren, Arthur R. | United States | United States |
| Upson, Walter L.II | United States | United States |
| Upton, E. K.l. | United States | United States |
| Urama, Johnson O. | Nigeria | Nigeria |
| Uras, Silvano | Italy | Italy |
| URATA, Yuji | China Taipei | China Taipei |
| Urban, Sean E. | United States | United States |
| Urbanik, Marek | Poland | Poland |
| Ureche, Vasile | Romania | Romania |
| Urov sevi'c, Dejan V. | Serbia, Republic of | Serbia, Republic of |
| Urquhart, James Stuart | Australia | Australia |
| Urry, Claudia Megan | United States | United States |
| Usenko, Igor | Ukraine | Ukraine |
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