Article ID Journal Published Year Pages File Type
1767963 Advances in Space Research 2006 4 Pages PDF
Abstract

Nine HST orbits have been used to image Ceres using the High Resolution Camera of the Advanced Camera for Surveys. Two hundred and fifty-nine images in three filters (F555W, F330W and F220W) were obtained covering the entire surface. Two visible features are readily apparent, a dark patch and a bright point. The bright spot was suitable for control point work enabling the spin axis (291° RA and 59° Dec.) and the latitude (14°N) of the bright point to be determined. Limb accuracies of approaching 0.1 pixel accuracy enabled the shape of Ceres to be determined to be rotationally symmetric with a short axis of 909 km and a long axis of 975 km. Analysis of these images is preliminary and continues to be refined.

Related Topics
Physical Sciences and Engineering Earth and Planetary Sciences Space and Planetary Science
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