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今年双子座流星雨到底是看还是不看呢？
source link: https://tech.sina.com.cn/d/s/2019-12-12/doc-iihnzhfz5429834.shtml
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来源：天文茶餐厅双子座流星雨几乎是每年最强烈最稳定的流星雨（可能没有之一）。通常，它的ZHR值都能达到100+。ZHR值是“天顶每时出现率”（zenithalhourlyrate）的缩写，指在一个完全晴朗、黑暗的地方、目视极限星等6.5等（
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