Celestial Poles 天极（天球旋转轴的两端） Celestial Sphere 天球［座标］以地球为中心，半径为无限大的一个假想球，所有的天体运行看起来都在等距的天...
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... celestial poles 天极 ; 天极天球旋转轴的两端 ; 天球旋转轴的两端 Hiking Poles 步行杖 whisker poles 前帆撑杆 ...
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... cardinal signs 本位星座 Celestial Poles 天极 天球旋转轴的两端 Celestial Sphere 天球 假设有一个球以地球为球心，球面在无限远 ...
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N either of the two points at which the earth's axis, extended to infinity, would intersect the celestial sphere 地球的两极之一 (Sometimes shortened to pole)
Celestial poles are situated directly over the earth's geographical poles.
天极直接位于地球的地理极上面。
The sphere is mounted by its poles (corresponding to the celestial poles) on a metal axis, and can rotate around it.
整个铜球可以绕一根金属轴转动，转动一周代表一个昼夜。
Then, as the sky darkened, the stars became visible, the Earth’s spin making them trace their own circular paths about the north and south celestial poles.
随后，天色渐黑，星空依稀可见，地球的自转使得恒星在南天极和北天极沿着个子的轨道划下绚丽光环。
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