You can determine latitude from the Angle between a celestial object and the horizon, and you can calculate longitude from the Earth's rotation.
根据空中某个物体与地平线之间的角度可以确定纬度，然后根据地球旋转计算出经度。
Horizon latitude: the angular distance of a celestial object above the horizon.
地平纬度：地平线以上天体的角度距离。
Either half of the celestial sphere as divided by the ecliptic, the celestial equator, or the horizon.
半天球被黄道，天赤道或地平圈分成两半的天球的一半…
Either half of the celestial sphere as divided by the ecliptic, the celestial equator, or the horizon.
半天球被黄道，天赤道或地平圈分成两半的天球的一半…
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