(3753) Cruithne

出典しゅってん:ウィキメディア・コモンズ (Wikimedia Commons)
ナビゲーションに移動いどう 検索けんさく移動いどう

(3753) Cruithne - is an asteroid in orbit around the Sun. It is sometimes described as Earth's "second moon", though this is technically incorrect: its orbit has unusual properties when viewed in relation to the orbit of the Earth, but it is not a satellite of the Earth.