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5万年难得一见，就在2月份头一天，2023年最亮彗星将飞跃地球
天文学家在加利福尼亚州帕洛马天文台的兹威基瞬变设施(ZTF)发现了彗星C/2022 E3 (ZTF)，当时它距离太阳6.43亿公里，就在木星轨道内。
焦维新教授540/654
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