Named in honor of Patricia M. Bridges, planetary cartographer with the U.S. Geological Survey. Based on intimate familiarity with the Moon’s surface, gained from long hours at the eyepiece of the 0.6-m Clark refractor at Lowell Observatory, and later on minutely detailed knowledge gleaned from spacecraft images, Bridges’ shaded relief maps of the Moon, other satellites and the terrestrial planets, rendered with extraordinary skill by means of the airbrush, are generally regarded as unsurpassed. (M 15576) _ _.