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20. Positions and Motions of Minor Planets, Comets and Satellites Positions Et Mouvements Des Petites Planetes, Des Cometes Et Des Satellites

Published online by Cambridge University Press:  25 April 2016

Extract

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In the past triennium members of the Commission 20 have been very active in studying positions and motions of minor planets, comets and satellites including rings by observational and theoretical investigations, as it is described in this report In fact observers have been producing tremendous amount of astrometric data, much more than we could imagine twenty years ago, when we heard many complains and appeals to observers for needs of more observations, particularly, for minor planets and satellites. Technically, several new devices to detect faint objects and to measure their positions more effectively, have been developed. Theoreticians have faced many interesting and important problems to explain observational facts with several powerful methods developed recently.

Type
Research Article
Copyright
Copyright © Kluwer 1988