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美国之音
1 年
NASA:“百年不遇”的新星爆发随时可能到来
美国国家航空航天局(NASA)预计9月将发生一次新星爆发,并称其为“百年不遇”、可以用肉眼观察到的天文事件。 追踪北冕座T--又称T CrB--的研究人员表示,此次爆发可能在9月之前的任何时间发生。T CrB通常每80年爆发一次,上次从地球上看到它是在1946年。
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