A full moon is seen in Daxing District of Beijing, capital of China, Sept. 21, 2021. (Xinhua/Ren Pengfei)

A full moon is seen in Zhengzhou, central China's Henan Province, Sept. 21, 2021. (Xinhua/Zhu Xiang)

(210921) -- ZHENGZHOU, Sept. 21, 2021 (Xinhua) -- A full moon is seen in Zhengzhou, central China's Henan Province, Sept. 21, 2021. (Xinhua/Zhu Xiang)

A full moon is seen in Zhengzhou, central China's Henan Province, Sept. 21, 2021. (Xinhua/Zhu Xiang)

A full moon is seen in Zhengzhou, central China's Henan Province, Sept. 21, 2021. (Xinhua/Zhu Xiang)

A full moon is seen at Yanzhou ancient town in Jiande City of east China's Zhejiang Province, Sept. 21, 2021. (Xinhua/Xu Yu)

A full moon is seen in Zhengzhou, central China's Henan Province, Sept. 21, 2021. (Xinhua/Zhu Xiang)

A full moon shines over a moon installation at the Taierzhuang ancient town in Zaozhuang City, east China's Shandong Province, Sept. 21, 2021. (Photo by Gao Qimin/Xinhua)

A full moon is seen in Nantong City, east China's Jiangsu Province, Sept. 21, 2021. (Photo by Xu Congjun/Xinhua)

A full moon is seen in Wuxi City, east China's Jiangsu Province, Sept. 21, 2021. (Photo by Huan Yueliang/Xinhua)

来源：Xinhua