@ CCTV.com看新闻。记者从北京天文馆获悉,今年狮子座流星雨的数量将出现在北京时间18开发者_JAVA百科日7时,每小时约20颗天顶流星。虽然流星数量不多,但流星雨偶尔会出现明亮的火球,也很值得观察。喜欢流星雨的爱[详细]
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