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Observations C.C.D. du système des satellites de Saturne faites à Bordeaux. Comparaisons avec les théories

M. Rapaport, J.F. Le Campion

ABSTRACT : We have measured 100 images of the first satellites of Saturn from obsevations made with a CCD camera on the 62 cm telescope at Bordeaux Observatory in septmber 1992. We have compared the astrometric positions coming from these observations with the theoretical positions given by three theories. We show that some problems occur with Mimas and Iapetus. For the other satellites, the accuracy of the intersatellites distances is about 006-008. This analysis shows that the CCD methods give satellite positions which are better or as good as those from recent photographic obsevations.