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- International Astronomical Union (9)
- 朝永, 振一郎 (1906-1979) (6)
- International Astronomical Union. Colloquium (5)
- Royal Society (Great Britain) (4)
- European Space Agency (3)
- Hellwege, K. H. (3)
- International Astronomical Union. Central Bureau for Astronomical Telegrams (3)
- International Astronomical Union. Symposium (3)
- Marsden, Brian G. (3)
- Minor Planet Center (3)
- NATO Advanced Study Institute (3)
- Roy, A. E. (Archie Edmiston), 1924- (3)
- Society of Photo-optical Instrumentation Engineers (3)
- United States. National Aeronautics and Space Administration (3)
- 宇宙科学研究所 (3)
- American Astronomical Society (2)
- Bardwell, Conrad M. (2)
- Clarke, D. (David), 1936- (2)
- European Southern Observatory (2)
- General Assembly of the IAU (2)
- Guseinov, O. H. (2)
- Hellwege, A. M. (2)
- Henden, Arne A. (2)
- Hudson, H. S. (2)
- Hunt, Garry E. (2)
- Jaschek, Carlos (2)
- Kaitchuck, Ronald H. (2)
- Kjär, K. (2)
- Lifshit︠s︡, E. M. (Evgeniĭ Mikhaĭlovich), 1915- (2)
- Matthews, Mildred Shapley (2)
- Morrison, David, 1940- (2)
- Murakami, Harutaro (2)
- Narlikar, Jayant Vishnu, 1938- (2)
- Pitaevskiĭ, Lev Petrovich (2)
- Schaifers, K. (2)
- Szebehely, Victor G., 1921- (2)
- United States. Congress. Office of Technology Assessment (2)
- Voigt, H. H. (Hans Heinrich), 1921- (2)
- Wayman, Patrick A. (2)
- 三鷹市遺跡調査会調査団 (2)
- 古在, 由秀(1928-) (2)
- 大槻, 義彦(1936-) (2)
- 斉田, 博(1926-1982) (2)
- 斉藤, 国治(1913-) (2)
- 日本放送協会 (2)
- 東京天文台 (2)
- 磯部, 琇三(1942-) (2)
- 科学技術和英表現辞典刊行会 (2)
- 薮下, 信(1936-) (2)
- 薮内, 清(1906-2000) (2)
- AAS/AIAA Astrodynamics Conference (1)
- Abraham, Ralph, 1936- (1)
- Ackeret, Jakob (1)
- Advanced Course of Swiss Society of Astronomy and Astrophysics (1)
- Aerospace Corporation (1)
- Agayev, A. G. (1)
- Ahrens, T. J. (Thomas J.), 1936- (1)
- Akademii︠a︡ nauk SSSR. Astronomicheskiĭ sovet (1)
- Aller, Lawrence H. (Lawrence Hugh), 1913- (1)
- Amnuel, P. R. (1)
- Angenheister, G. (1)
- Assembly of Mathematical and Physical Sciences (U.S.). Astronomy Survey Committee (1)
- Astronomický ústav SAV (1)
- Audouze, Jean, 1940- (1)
- Aveni, Anthony F. (1)
- Baker, Victor R. (1)
- Balázs, Béla (1)
- Barnes, C. A. (1)
- Barr, Larry D. (1)
- Basov, N. G. (Nikolaĭ Gennadievich), 1922- (1)
- Bath, Geoffrey (1)
- Bechler, Z. (1)
- Beckman, J. E. (1)
- Benz, A. O. (1)
- Biermann, P. (1)
- Bilson, Elizabeth M. (1)
- Bimberg, D. (1)
- Binney, James, 1950- (1)
- Blanc, Charles (1)
- Blandford, Roger D. (1)
- Bloembergen, N. (1)
- Boynton, William V. (1)
- Brahic, A. (1)
- Breuer, Reinhard A., 1946- (1)
- Briggs, Geoffrey, 1941- (1)
- British National Committee on Space Research (1)
- Brosche, P. (Peter) (1)
- Brown, Charles M. (Charles Moseley), 1943- (1)
- Broy, M., 1949- (1)
- Bruno, Giordano, 1548-1600 (1)
- Brézis, H. (Haim) (1)
- Brück, H. A. (Hermann Alexander), 1905- (1)
- Burbidge, Geoffrey R. (1)
- COSPAR (1)
- Calame, O. (Odile), 1941- (1)
- Campbell, S. L. (Stephen La Vern), 1945- (1)
- Cap, Ferdinand (1)
- Carnegie, Dale, 1888-1955 (1)
- Carrington, A. (1)
- Centre national d'études spatiales (France) (1)