Symposia

1972
August
Aug 21 - Aug 25	IAUS 53	Physics of Dense Matter	Boulder, CO United States
May
May 29 - Jun 2	IAUS 52	Interstellar Dust and Related Topics	Albany, NY United States
May 11 - May 13	IAUS 55	X- and Gamma-ray Astronomy	Madrid Spain
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	CÃ³rdoba 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

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