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celestial pole

/səˈlɛstiəl poʊl/

翻译: 天球上地球自转轴无限延伸后与天球相交的两个点之一;北天极和南天极分别位于地球地理北极和南极的正上方。

1 个条目

phrase

/səˈlɛstiəl poʊl/C1formalscientific
  • zh天球上地球自转轴无限延伸后与天球相交的两个点之一;北天极和南天极分别位于地球地理北极和南极的正上方。

Either of the two points in the sky where the Earth's axis of rotation, extended infinitely, intersects the celestial sphere; the north and south celestial poles are directly above the Earth's geographic poles.

  1. Astronomical reference pointC1formal

    Either of the two points in the sky where the Earth's axis of rotation, extended infinitely, intersects the celestial sphere.

    zh天极

    • The North Star is located very close to the north celestial pole.
    • Astronomers use the celestial poles as fixed points for mapping the sky.
    • The celestial pole appears to be stationary while the stars rotate around it.