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The XIXth General Assembly of the International Astronomical Union was held in New Delhi, India, from November 19 to 28, 1985. It was dedicated to the memory of a former IAU President, Professor M. K. V. Bappu, who tragically passed away on August 19, 1982. On the occasion of the Delhi General Assembly, the IAU Minor Planet Center announced that Minor Planet (asteroid) No. 2596 henceforth will carry the name Vainu Sappu. The full text of the announcement reads: "(2596) VAINU BAPPU = 1979 KN (diameter about 8 kilometers, period 5 years 4 months, mean distance from the Sun around 450 million kilometers) Discovered 1979, May 19, by R. M. West at the European Southern Observatory. Named in memory of Manali f
List of contents
I.Inaugural Ceremony - 19 November 1985.- - Address by Prof. M.G.K. Menon, President of the National Organizing Committee.- - Address by Prof. R. Hanbury Brown, President of the International Astronomical Union.- - Address by Shri Ram Niwas Mirdha, Minister of Posts and Telegraphs.- - Address by the Prime Minister of India, Shri Rajiv Gandhi.- - Address by Dr. A.P. Mitra, Chairman of the Local Organizing Committee.- II. Report on the XIXth General Assembly.- Agenda.- III. Report of the Executive Committee (1982-1984).- IV. Reports of Meetings of Commissions Comptes Rendus Pes Seances Pes Commissions No. Commission.- 4 Ephemerides Ephémérides.- 5 Documentation and Astronomical Data Documentations et Données Astronomiques.- 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'Atmosphére Solaire.- 14 Atomic and Molecular Data Données Atomiques et Moléculaires.- 15 Physical Study of Comets, Minor Planets and Meteorites Etude Physique des Cométes, des Petites Planétes et des Météorites.- 16 Physical Study of Planets and Satellites Etude Physique des Planétes et des Satellites.- 19 Rotation of the Earth Rotation de la Terre.- 20 Positions and Motions of Minor Planets, Comets and Satellites Positions et Mouvements des Petites Planétes, des Cométes et des Satellites.- 21 Light of the Night Sky Lumiére du Ciel Nocturne.- 22 Meteors and Interplanetary Dust Météores et Poussiére Interplanétaire.- 24 Photographic Astrometry Astrométrie Photographique.- 25 Stellar Photometry and PolarimetryPhotométrie et Polarimétrie Stellaires.- 26 Double and Multiple Stars Etoiles Doubles et Multiples.- 27 Variable Stars Etoiles Variables.- 28 Galaxies 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 Systéme Galactique.- 34 Interstellar Matter Matiére Interstellaire.- 35 Stellar Constitution Constitution des Etoiles.- 36 The Theory of Stellar Atmospheres La Théorie des Atmosphéres Stellaires.- 37 Star Clusters and Associations Amas Stellaires et Associations.- 38 Exchange of Astronomers Echanges d'Astronomes.- 40 Radio Astronomy Radioastronomie.- 41 History of Astronomy Histoire de 1'Astronomie.- 42 Close Binary Stars Etoiles Doubles Serrées.- 44 Astronomy from Space L'Astronomie à partir de l'Espace.- 45 Stellar Classification Classification Stellaire.- 46 Teaching of Astronomy Enseignement de 1'Astronomie.- 47 Cosmology Cosmologie.- 48 High-Energy Astrophysics Astrophysique des Hautes Energies.- 49 The Interplanetary Plasma and the Heliosphere Plasma Interplanétaire et Heliosphére.- 50 Protection of Existing and Potential Observatory Sites Protection des Sites d'Observatoires Existants et Potentiels.- 51 Bioastronomy: Search for Extraterrestrial Life Bioastronomie: Recherche de la Vie dans 1'Univers.- Working Group for Planetary System Nomenclature Groupe de Travail sur la Nomenclature du Systéme Planétaire.- V. Functions and Statutes of the Union.- VI. Membership.- 1. List of Adhering Countries.- 2. Membership of Commissions.- 3. Alphabetical List of Members.
