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 |
| Raadu, Michael A. | Sweden | Sweden |
| Raassen, Ion | Netherlands | Netherlands |
| Rabbia, Yves | France | France |
| Rabin, Douglas Mark | United States | United States |
| Rabiu, Akeem B. | Nigeria | Nigeria |
| Rabolli, Monica | Argentina | Argentina |
| Rachkovsky, D. N. | Ukraine | Ukraine |
| Racine, Rene | Canada | Canada |
| Radeva, Veselka Siderova | Bulgaria | Bulgaria |
| Radford, Simon John Elliott | United States | United States |
| Radick, Richard R. | United States | United States |
| Radiman, Iratio | Indonesia | Indonesia |
| Raedler, K. H. | Germany | Germany |
| Rafanelli, Piero | Italy | Italy |
| Rafert, James Bruce | United States | United States |
| Raharto, Moedji | Indonesia | Indonesia |
| Rahimov, Ismail A. | Russian Federation | Russian Federation |
| Rahunen, Timo | Finland | Finland |
| Rahvar, Sohrab | Canada | Canada |
| Raimondo, Gabriella | Italy | Italy |
| Raine, Derek J. | United Kingdom | United Kingdom |
| Raitala, Jouko T. | Finland | Finland |
| Raiteri, Claudia Maria | Italy | Italy |
| Rajagopal, Jayadev Kumar | United States | United States |
| Rajamohan, R. | India | India |
| Raju, P. K. | India | India |
| Raju, Vasundhara | India | India |
| Rakavy, Gideon | Israel | Israel |
| Ralchenko, Yuri | United States | United States |
| Ramadurai, Souriraja | India | India |
| Ramamurthy, Swaminathan | India | India |
| Ramana, Murthy P.V. | India | India |
| Ramella, Massimo | Italy | Italy |
| Ramelli, Renzo G.E. | Switzerland | Switzerland |
| Ramírez, Jose M. | Venezuela | Venezuela |
| Ramos-Larios, Gerardo | Mexico | Mexico |
| Rampazzo, Roberto | Italy | Italy |
| Ramsey, Lawrence W. | United States | United States |
| Ranalli, Piero | Italy | Italy |
| Rand, Richard J. | United States | United States |
| Randich, Sofia | Italy | Italy |
| Rangarajan, K. E. | India | India |
| Ranieri, Marcello | Italy | Italy |
| Rank, David M. | United States | United States |
| Rank-Lueftinger, Theresa | Austria | Austria |
| Rankin, Joanna M. | United States | United States |
| Ransom, Scott M. | United States | United States |
| Rao, A. Pramesh | India | India |
| Rao, Arikkala Raghurama | India | India |
| Rao, M. N. | India | India |
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