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Impact of The Hipparcos Data on The Astrometric Reduction of The Outer Planets
1998
Highlights of Astronomy
We investigated the improvement of photographic astrometric observations of outer planets by use of Hipparcos Catalogue stars. The position of Jupiter on the plates was determined from measurements of the Galilean satellites, combined with ephemerides accurate to better than 10 mas. In a 6 contants model of photographic plates reduction, when images are near the center of the field, only offsets have to be computed, by considering the scale and orientation known. We applied this idea to the
doi:10.1017/s1539299600022073
fatcat:ahp6eue2kbdmrpdzuakwivtfba