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Symposia
Details on IAU Symposia can be found in the IAU Information Bulletins.
1972 | |||
| April | |||
| Apr 12 - Apr 15 |
IAUC 18 | Orbital and Physical Parameters of Double Stars | Swarthmore College, PA United States |
| Apr 4 - Apr 6 |
IAUC 22 | Asteroids, Comets, Meteoritic Matter | Nice France |
| February | |||
| Feb 21 - Feb 24 |
IAUC 19 | Stellar Chromospheres | Greenbelt, MD United States |
| January | |||
| Jan 15 - Jan 17 |
IAUC 24 | Lunar Dynamics and Observational Coordinate System | Houston, TX United States |
1971 | |||
| October | |||
| Oct 18 - Oct 24 |
IAUS 50 | Spectral Classification and Multicolour Photometry | Córdoba Argentina |
| September | |||
| Sep 8 - Sep 11 |
IAUC 16 | Analytical Procedures for Eclipsing Binary Light Curves | Philadelphia, PA United States |
| Sep 6 - Sep 8 |
IAUC XX | Colloquium on Supergiant Stars | Trieste Italy |
| August | |||
| Aug 31 - Sep 3 |
IAUC 15 | New Directions and New Frontiers in Variable Star Research | Bamberg Germany |
| Aug 24 - Aug 26 |
IAUC 14 | Ultraviolet and X-ray Spectroscopy of Astrophysical and Laboratory Plasmas | Utrecht Netherlands |
| Aug 9 - Aug 14 |
IAUS 49 | Wolf-Rayet and High-Temperature Stars | Buenos Aires Argentina |
| June | |||
| Jun 14 - Jun 17 |
IAUC 13 | Evolutionary and Physical Properties of Meteoroids | Albany, NY United States |
| May | |||
| May 9 - May 15 |
IAUS 48 | Rotation of the Earth | Morioka Japan |
| March | |||
| Mar 22 - Mar 26 |
IAUS 47 | The Moon | Newcastle-upon-Tyne United Kingdom |
| Mar 6 - Mar 10 |
IAUC 12 | Physical Studies of Minor Planets | Tucson, AZ United States |
1970 | |||
| September | |||
| Sep 1 - Sep 4 |
IAUC 8 | Experimental Techniques for the Determination of Fundamental Spectroscopic Data | London United Kingdom |
| August | |||
| Aug 31 - Sep 4 |
IAUS 43 | Solar Magnetic Fields | Paris France |
| Aug 12 - Aug 14 |
IAUC 9 | The IAU System of Astronomical Constants | Heidelberg Germany |
| Aug 12 - Aug 14 |
IAUC 11 | Automation in Optical Astrophysics | Edinburgh United Kingdom |
| Aug 12 - Aug 15 |
IAUC 10 | The Gravitational N-Body Problem | Cambridge United Kingdom |
| Aug 11 - Sep 13 |
IAUS 42 | White Dwarfs | St. Andrews, Fife United Kingdom |
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