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celestial horizon

/səˈlɛstiəl həˈraɪzən/

翻译: 天球上距天顶90度的大圆,将可见天空与不可见天空分开;从观察者角度看,是天空与地球相接的边界。

1 个条目

phrase

/səˈlɛstiəl həˈraɪzən/C1formalscientific
  • zh天球上距天顶90度的大圆,将可见天空与不可见天空分开;从观察者角度看,是天空与地球相接的边界。

The great circle on the celestial sphere that is 90 degrees from the zenith, dividing the visible sky from the invisible sky; the boundary where the sky meets the Earth from an observer's perspective.

  1. Astronomical reference lineC2formal

    The great circle on the celestial sphere that is 90 degrees from the zenith, dividing the visible sky from the invisible sky.

    zh地平圈

    • The celestial horizon is used as a reference for measuring altitude in astronomy.
    • Navigators rely on the celestial horizon to determine star positions.
    • The celestial horizon differs from the visible horizon due to atmospheric refraction.