An outer layer on each of the eight surrounding pyramids selectively blocks out portions of the structures throughout the month, keeping track of the lunar cycle like hands on a clock.

周围8个金字塔中每一个上的外层有选择地摆出整个月的某一结构部分，像手上的钟表一样记录着月亮的周期。

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That means taking pictures 51 minutes later each day for a lunar month produces a similar figure eight in the sky.

也就是说，朔望月每天在51分钟后拍摄一张照片就能形成同样的空中8字。

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Today is the twelfth lunar month twenty-eight, away from the Spring Festival went one day.

今天是腊月二十八，距离春节又进了一天。

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