Astrometry of Pluto and Saturn with the CCD meridian instruments of Bordeaux and Valinhos M. Rapaport, R. Teixeira, J. F. Le Campion, C. Ducourant, J. I. B. Camargo and P. Benevides-Soares A&A, 383 3 (2002) 1054-1061 Published online: 15 March 2002 DOI: 10.1051/0004-6361:20011804