On the prograde rotation of asteriods |
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| Authors: | Olav Hansen |
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| Institution: | Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91103, USA |
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| Abstract: | Sets of diameter determinations before and after opposition for the asteriods Ceres, Pallas, Vesta, and Fortuna have been studied statistically for indications of spin direction. All four asteriods are tentatively found to have prograde spin. For Ceres, that conclusion is virtually certain. |
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