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  1. Copilot 答案
    近地点363,104 km(0.0024天文单位
    远地点405,696 km(0.0027天文单位)
    半长轴384,399 km(0.00257天文单位)
    离心率0.0549
    Names and etymology

    The English proper name for Earth's natural satellite is typically written as Moon, with a capital M. The noun moon is derived from Old English mōna, which stems from Proto-Germanic *mēnōn, which in turn comes from … 展开

    Natural history

    The lunar geological periods are named after their characteristic features, from most impact craters outside the dark mare, to the mare and later craters, and finally the young, still bright and therefore readily visible craters with … 展开

    Physical characteristics

    The Moon is a very slightly scalene ellipsoid due to tidal stretching, with its long axis displaced 30° from facing the Earth, due to gravitational anomalies from impact basins. Its shape is more elongated than current tidal forces can a… 展开

    Earth–Moon system

    The Earth and the Moon form the Earth–Moon satellite system with a shared center of mass, or barycenter. This barycenter is 1,700 km (1,100 mi) (about a quarter of Earth's radius) beneath the Earth's surface. … 展开

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