20. Positions and Motions of Minor Planets, Comets And Satellites

Autor: E Roemer, C J van Houten, Yu V Batrakov, M P Candy, Y Kozai, Ĺ Kresák, L K Kristensen, B G Marsden, H Scholl, G E Taylor, D K Yeomans, Y Z Zhang
Rok vydání: 1985
Zdroj: Transactions of the International Astronomical Union. 19:207-226
ISSN: 0251-107X
DOI: 10.1017/s0251107x00006325
Popis: Interest in minor planets and comets continued to grow during the triennium, sparked in part by the highly successful 1983 mission of the Infrared Astronomy Satellite (IRAS) as well as by activities associated with the return of P/Halley and the first spacecraft missions to comets. A trial of the Astrometry Network of the International Halley Watch (IHW) on P/Crommelin was quite successful. Yet with an increasing need for precise ephemerides, there continued to be concern for acquisition and timely reporting of astrometric observations of even the best known comets.
Databáze: OpenAIRE