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north celestial pole

/nɔːrθ səˈlɛstiəl poʊl/

翻译: 北天极是地球自转轴延长后与天球相交于北方的点,即天球上所有恒星看起来围绕其旋转的北天一点,靠近北极星。它是北极在地球上的投影在天球上的对应点。

1 个条目

phrase

/nɔːrθ səˈlɛstiəl poʊl/C1formalscientific
  • zh北天极是地球自转轴延长后与天球相交于北方的点,即天球上所有恒星看起来围绕其旋转的北天一点,靠近北极星。它是北极在地球上的投影在天球上的对应点。

The point in the northern sky around which all stars appear to rotate, located near the star Polaris. It is the projection of Earth's North Pole onto the celestial sphere.

  1. Astronomical pointC2formal

    The point in the sky around which all stars in the northern hemisphere appear to rotate; the northern extension of Earth's axis of rotation.

    zh北天极

    • The north celestial pole is currently marked by the star Polaris.
    • Astronomers use the north celestial pole as a reference point for celestial coordinates.
    • The north celestial pole is located near the constellation Ursa Minor.