Preliminary Results from the Occultation of 28 Sgr by the Saturn System: Saturn Hubbard, W. B. ; Porco, C. C. ; Hunten, D. M. ; Rieke, G. ; Rieke, M. ; Asphaug, E. ; Clark, R. ; Haemmerle, V. ; Haller, J. ; Holberg, J. B. ; Lebofsky, L. A. ; Marcialis, R. L. ; McCarthy, D. ; McLeod, B. ; Buie, M. ; Elias, J. ; Jewitt, D. C. ; Persson, E. ; Boroson, T. ; West, S. ; Landau, R. ; Schuster, W. Abstract Publication: Bulletin of the American Astronomical Society Pub Date: June 1989 Bibcode: 1989BAAS...21..951H