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  1. 27.3 days
    • 根据 2 个来源
    The Moonmoves around the Earth in an elliptical path with a period of 27.3 days, gradually increasing its distance from Earth by 38 millimeters per year.
    Just like the Earth revolves around the Sun, the Moon revolves around the Earth. The Moon revolves around Earth once every 27.3 days. We call this length of time a lunar month.
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    Orbit of the Moon - Wikipedia

    The path of the Earth–Moon system in its solar orbit is defined as the movement of this mutual centre of gravity around the Sun. Consequently, Earth's centre veers inside and outside the solar orbital path during each synodic month as the Moon moves in its orbit around the common centre of gravity. 展开

    The Moon orbits Earth in the prograde direction and completes one revolution relative to the Vernal Equinox and the stars in about 27.32 days (a tropical month and sidereal month) and one revolution relative to the Sun in … 展开

    Path of Earth and Moon around Sun 图像

    There are several different periods associated with the lunar orbit. The sidereal month is the time it takes to make one complete orbit around Earth with respect to the fixed stars. … 展开

    The Moon is in synchronous rotation, meaning that it keeps the same face toward Earth at all times. This synchronous rotation is … 展开

    Properties 图像
    概览 图像

    The properties of the orbit described in this section are approximations. The Moon's orbit around Earth has many variations (perturbations) due to the gravitational attraction of the Sun and … 展开

    About 1000 BC, the Babylonians were the first human civilization known to have kept a consistent record of lunar observations. Clay tablets from that period, which have been found in Iraq, are … 展开

    The gravitational attraction that the Moon exerts on Earth is the cause of tides in both the ocean and the solid Earth; the Sun has a smaller tidal … 展开

    When viewed from the north celestial pole (that is, from the approximate direction of the star Polaris) the Moon orbits Earth anticlockwise and … 展开

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  4. The Moon's Orbit and Rotation - Moon: NASA Science

    2022年12月2日 · Observe the Moon Around the World On July 16, 1969, the huge, 363-feet tall Saturn V rocket launches on the Apollo 11 mission from Pad A, Launch Complex 39, Kennedy Space Center, at 9:32 a.m. EDT. Apollo 11 …

  5. What path does the moon's orbit travel around the Earth? - UC …

  6. Moon Phases Visualized – Moon Location

    See the Moon's position in its orbit around Earth in real-time as well as past and future Moon phases, illumination, distance from Earth, and latitude.

  7. The Orbit of the Moon - Universe Today

    2016年11月5日 · Learn about the Moon's orbit around the Earth, its phases, and its eccentricity. Find out how the Moon's orbit affects its appearance and its future evolution.

  8. NASA - Eclipses and the Moon's Orbit

    The Moon revolves around Earth in an elliptical orbit with a mean eccentricity of 0.0549. Thus, the Moon's center-to-center distance from Earth varies with mean values of 363,396 km at perigee to 405,504 km at apogee.

  9. Top Moon Questions - NASA Science

    As the Moon completes each 27.3-day orbit around Earth, both Earth and the Moon are moving around the Sun. Because of this change in position, sunlight appears to hit the Moon at a slightly different angle on day 27 than it does on …

  10. NASA SVS | Moon Essentials: Orbit - NASA Scientific …

    2024年7月18日 · At the ascending node, the Moon crosses the ecliptic while moving north; at the descending node it's moving south. Solar and lunar eclipses can only happen when the Moon is near one of the nodes. At other places in …

  11. In Depth | Earth's Moon – NASA Solar System Exploration

  12. Phases and orbits of the Moon - Institute of Physics

    Moon fact: The Moon’s phases repeat every 29.5 days, but it’s orbit around the Earth only takes 27. Why? In that time, as our Moon moves around Earth, the Earth also moves around the Sun. Our Moon must travel a little farther in its …