Abstract

Pluto and its satellite Charon regularly occulted or transited each others disks from 1985 through 1990. The light curves resulting from these events (collectively called ii mutual events ˇˇ) have been used to determine albedo maps of Plutos sub-Charon hemisphere. We now use a data set of four light curves that were obtained in both B and V Johnson —lters to construct a two-color map of Plutos surface. We are able to resolve the central part of Plutos sub-Charon hemisphere. We —nd that the dark albedo feature that forms a band below Plutos equator is comprised of several distinct color units. We detect ratios of V -—lter/B-—lter normal re—ectances ranging from D1.15 to D1.39 on Plutos sub-Charon hemi- sphere. Key word: planets and satellites: individual (Pluto, Charon)

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