• The sphere is mounted by its poles (corresponding to the celestial poles) on a metal axis, and can rotate around it.

    整个铜球可以金属转动,转动一周代表一个昼夜。

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  • Astronomers have divided the celestial sphere into a total of 88 regions.

    天文学家天球划分88个区域

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  • Its intersection with the celestial sphere will be a great circle -the ecliptic.

    天球相交处形成一个大圆-黄道

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  • Its intersection with the celestial sphere will be a great circle -the ecliptic.

    天球相交处形成一个大圆-黄道

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