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According to a long-standing astronomical tradition, the naming of minor planets in the solar system is the privilege of the discoverers. Contrary to most other kinds of celestial objects which receive complex alpha-numerical designations, the names of minor planets often say more about the discoverers than about the object in question. There is a rich and colourful variety of ingenious names, from those of heavenly goddesses in the nineteenth century, to the more prosaic and sometimes very specific names of observatories, towns and mountains, computers and persons, given by present-day discoverers. Commission 20 of the International Astronomical Union, under whose auspices the naming of min...
The changing character of the IAU General Assemblies becomes most clear from a comparison of the agenda of the Brighton meeting with that of one of the earlier meetings. The fourth General Assembly (Cambridge Mass. , 1932) had about 240 participants, registered guests included, the Brighton meeting had about 2300 people attending. The Cambridge meeting lasted 5, working days, of which, however, three half days were exclusively devoted to excursions, leaving four real meeting days. At that time the nearly 30 commissions had each only one meeting, during part of a morning or afternoon; some commissions did not meet at all. There was one public lecture, by Sir Arthur Eddington, on 'The Expandin...
Proceedings of the 74th Colloquium of the International Astronomical Union held in Gerakini Chalkidiki, Greece, August 30-September 2, 1982
The abstracts deal with the nature of cometary ices, cryogenic handling and sampling equipment, origin and composition of samples, and spectroscopic, thermal and chemical processing methods of cometary nuclei. Laboratory simulation experimental results on dust samples are reported. Some results obtained from Halley's comet are also included. Microanalytic techniques for examining trace elements of cometary particles, synchrotron x ray fluorescence and instrument neutron activation analysis (INAA), are presented.