Named in honor of Bruno Sicardy (1958– ), professor of astronomy at Paris VI University. Sicardy’s research concerns solar-system dynamics. Using both theoretical and numerical approaches, he has studied the confining mechanism of shepherd satellites on planetary rings and arcs. He has also taken part in the observation of the giant planets using various techniques to search for new satellites, analyze the ring systems and determine atmopsheric temperature profiles. (M 27462) _ _.