Transactions of the International Astronomical Union

The three years since the Brighton General Assembly have been the most active period in the history of the Union. 33 IAU Symposia and Colloquia, the first Regional Meeting under the Auspices of the IAU, several co-sponsored Meetings and many other special projects. All this culminating with two General Assemblies in two opposite parts of the Earth, Australia and Poland. At the same time the membership of the Union rose to 3200, the number of Commissions to 40, the number of adhering countries to 47. The present Volume gives a general picture of the Union's recent activity. It contains the report of the Executive Committee, the report of the General Assembly, including the Commissions, Meetings, a short report on the Extraordinary General Assembly and an Appendix with the Members and Commissions of the IAU and the approved names of Lunar and Martian features. I take this opportunity to thank all our collaborators, members of the Executive Committee, Presidents of Commissions, Chairmen of Specific Projects, IAU Secrt;taries and all the Members of the IA U for their contribution to keep our Union a living body of active scientists and a big inter national family. G. CoNTOPOULOS General Secretary CONTENTS Page No.

Klappentext
IAU Transactions XXIIB summarizes the work of the XXIInd General Assembly. The discourses given during the Inaugural and Closing Ceremonies are reproduced in Chapters I and III, respectively. The proceedings of the two sessions of the General Assembly will be found in Chapter II, which includes the Resolutions and the report of the Finance Committee. The Statutes, Bye-Laws and a few working rules of the Union are published in Chapter IV. The Accounts and other aspects of the administration of the Union are recorded in Chapter V, together with the report of the Executive Committee for this last triennium, and provide the permanent record for the Union in the period 1991-1994. This volume also contains the Commission reports from The Hague compiled by the Presidents of the Commissions (Chapter VI). Finally, Chapter VII contains the list of countries adhering to the Union and the alphabetical, geographical and commission membership lists of about 8000 individual members. The IAU still appears to be unique among the scientific Unions in maintaining this category of individual membership which contributes in a crucial way to the spirit and the aims of the Union.

Inhalt
1 Report of the Executive Committee 197072.- 2 Welcoming Ceremony Report of the General Assembly.- Report of the Welcoming Ceremony, Sydney, 22 August 1973.- Report of the XVth General Assembly (with Resolutions included).- Résolutions adoptées par l'Assemblee Générate.- Resolutions adopted by the General Assembly.- New Members of the Union.- Appointment of the Presidents and Vice-Presidents of Commissions.- The place and date of the XVIth General Assembly.- Election of the new Executive Committee.- Addresses by the retiring and newly elected Officers.- Closing Ceremonies.- 3 Reports of Meetings of Commissions Comptes Rendus des Séances des Commissions.- Commissions No. 4 Ephemerides (Ephémerides).- 5 Documentation.- 6 Astronomical Telegrams (Télégrammes Astronomiques).- 7 Celestial Mechanics (Mécanique Céleste).- 8 Positional Astronomy (Astronomie de Position).- 9 Instruments and Techniques (Instruments et Techniques).- 10 Solar Activity (Activité Solaire).- 12 Radiation and Structure of the Solar Atmosphere (Radiation et Structure de l'Atmosphère Solaire).- 14 Fundamental Spectroscopic Data (Données Spectroscopiques Fondamentales).- 15 Physical Study of Comets, Minor Planets and Meteorites (L'Étude Physique des Comètes, des Petites Planètes et des Météorites).- 16 Physical Study of Planets and Satellites (Étude Physique des Planètes et des Satellites).- 17 The Moon (La Lune).- 19 Rotation of the Earth (Rotation de la Terre).- 20 Positions and Motions of Minor Planets, Comets and Satellites (Positions et Mouvements des Petites Planètes, des Comètes et des Satellites).- 21 Light of the Night Sky (Luminescence du Ciel).- 22 Meteors and Interplanetary Dust (Météores et la Poussière Interplanétaire).- 24 Photographic Astrometry(Astrométrie Photographique).- 25 Stellar Photometry and Polarimetry (Photométrie et Polarimétrie Stellaires).- 26 Double Stars (Étoiles Doubles).- 27 Variable Stars (Étoiles Variables).- 28 Galaxies.- 29 Stellar Spectra (Spectres Stellaires).- 30 Radial Velocities (Vitesses Radiales).- 31 Time (L'Heure).- 33 Structure and Dynamics of the Galactic System (Structure et Dynamique du Système Galactique).- 34 Interstellar Matter and Planetary Nebulae (Matière Interstellaire et Nébuleuses Planétaires.- 35 Stellar Constitution (Constitution des Étoiles).- 36 The Theory of Stellar Atmospheres (La Théorie des Atmosphères Stellaires).- 37 Star Clusters and Associations (Amas Stellaires et Associations).- 38 Exchange of Astronomers (Échange des Astronomes).- 40 Radio Astronomy (Radio Astronomie).- 42 Close Binary Stars (Étoiles Binaires Serrées).- 44 Astronomical Observations from Outside the Terrestrial Atmosphere (Observations Astronomiques au-dehors de 1'Atmosphère Terrestre).- 45 Spectral Classifications and Multiband Colour Indices (Classifications Spectrales et Indices de Couleur à Plusieurs Bandes).- 46 Teaching of Astronomy (Enseignement de l'Astronomie).- 47 Cosmology (Cosmologie).- 48 High Energy Astrophysics (Astrophysique de Grande Énergie).- 4 Astronomer's Handbook.- I. Short History of the IAU.- II. Administration and Finances of the Union.- III. The IAU and the other International Scientific Organizations.- IV. Services and Functions of the IAU.- V. Publications of the IAU.- VI. Symposia of the IAU.- Executive Committee 197376.- By-laws.- Working Rules.- Membership of Commissions and Alphabetical List of Members (See Appendix II) List of Countries adhering to the IAU.- 5 Report of the Extraordinary General Assembly, Poland 1973.-Opening Ceremony, Warsaw, 4 September 1973.- Appendix I.- Lunar and Martian Nomenclature.- Appendix II.- Membership of Commissions (Composition des Commissions).- Alphabetical List of Members (Liste Alphabétique des Membres).

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