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In page 2829 Bobhope:

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A rotational lightcurve of Bobhope was obtained from photometric observations by astronomer Landy Carbo at Oakley Southern Sky Observatory (E09), Australia, and at the U.S. Oakley Observatory in September 2008. It gave it a rotation period of 5.013±0.003 hours with a brightness variation of 0.46±0.08 magnitude (U=2).[1] A previously published lightcurve by French amateur astronomer Bernard Christophe gave a somewhat longer period of 6.0888±0.0007 hours with an amplitude of 0.50 (U=2).[2]