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2003 YN107
, also written 2003 YN107, is a very small near-Earth object moving in a 1:1 mean-motion resonance with Earth. As such it is co-orbital to Earth. ==Discovery, orbit and physical properties== It was discovered by the Lincoln Near Earth Asteroid Research (LINEAR) system in orbit around the Sun on December 20, 2003. Its diameter is approximately 10 to 30 metres. is on NASA's Earth Close Approach list, and is estimated to miss Earth by 0.01 AU. It revolves around the Sun on an Earth-like, almost circular, orbit. Its orbital period of 363.846 days also is very close to the sidereal year.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「2003 YN107」の詳細全文を読む
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