(5253) 1985 XB
(5253) 1985 XB is a Mars-crossing minor planet. It was discovered by Stephen Singer-Brewster at the Palomar Observatory in San Diego County, California, on December 15, 1985.
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(5253) 1985 XB is a Mars-crossing minor planet. It was discovered by Stephen Singer-Brewster at the Palomar Observatory in San Diego County, California, on December 15, 1985.
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