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 |
| Arnaboldi, Magda | Germany | Germany |
| Arnal, Edmundo Marcelo | Argentina | Argentina |
| Arnaud, Jean-Paul | France | France |
| Arnaud, Monique D. | France | France |
| Arnett, W. David | United States | United States |
| Arnold, Richard A. | New Zealand | New Zealand |
| Arnould, Marcel L. | Belgium | Belgium |
| Arny, Thomas T. | United States | United States |
| Arons, Jonathan | United States | United States |
| Arp, Halton | Germany | Germany |
| Arpigny, Claude | Belgium | Belgium |
| Arregui, Inigo | Spain | Spain |
| Arribas Mocoroa, Santiago | Spain | Spain |
| Arsenijevic, Jelisaveta | Serbia, Republic of | Serbia, Republic of |
| Arshakian, Tigran G. | Germany | Germany |
| Artamonov, Boris P. | Russian Federation | Russian Federation |
| Arthur, David W.G. | United States | United States |
| Arthur, Jane | Mexico | Mexico |
| Artymowicz, Pawel | Sweden | Sweden |
| Artyukh, Vadim S. | Russian Federation | Russian Federation |
| Artzner, Guy | France | France |
| ASAI , Ayumi | Japan | Japan |
| ASANO, Katsuaki | Japan | Japan |
| Asanok, Kitiyanee | Thailand | Thailand |
| Asareh, Habibolah | Iran, Islamic Rep of | Iran, Islamic Rep of |
| Aschenbach, Bernd | Germany | Germany |
| Aschwanden, Markus Josef | United States | United States |
| Ashby, Neil | United States | United States |
| Asher, David J. | United Kingdom | United Kingdom |
| Ashley, Michael | Australia | Australia |
| Ashok, N. M. | India | India |
| Aslan, Zeki | Turkey | Turkey |
| Aslanov, I. A. | Azerbaijan, Republic of | Azerbaijan, Republic of |
| Aspin, Colin | United States | United States |
| Asplund, Martin | Australia | Australia |
| Assafin, Marcelo | Brazil | Brazil |
| Asseo, Estelle | France | France |
| Assousa, George Elias | United States | United States |
| Assus, Pierre | France | France |
| Asteriadis, Georgios | Greece | Greece |
| Asvarov, Abdul I. | Azerbaijan, Republic of | Azerbaijan, Republic of |
| Atac, Tamer | Turkey | Turkey |
| Atanackovic, Olga M. | Serbia, Republic of | Serbia, Republic of |
| Athanassoula, Evangelie (Lia) | France | France |
| Athay, R. Grant | United States | United States |
| Atkinson, David H. | United States | United States |
| Atreya, Sushil K. | United States | United States |
| Atrio Barandela, Fernando | Spain | Spain |
| Aubier, Monique G. | France | France |
| Audard, Marc | Switzerland | Switzerland |
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