据国内媒体报道，10月21日，哈雷彗星将为我们送上最美的礼物，猎户座流星雨将迎来极大。
天文预报显示，今年猎户座流星雨的主峰值流量出现在10月21日，预计每小时流量在20颗左右。
猎户座流星雨的特征非常明显，流星速度极快且轨迹长，亮流星较多。
研究表明，猎户座流星雨经常会出现一些子峰值，这使得有时在主峰值前后的几晚会出现和极大期差不多的流星数量。
https://www.youdao.com/w/eng/%E6%A1%82%E6%9E%97%E4%B8%87%E5%AE%B6%E4%B9%90%E7%83%AD%E6%B0%B4%E5%99%A8%E7%BB%B4%E4%BF%AE%E7%94%B5%E8%AF%9D%E2%98%8E0773-3563336%E2%98%8E%E9%99%84%E8%BF%91%E5%B8%88%E5%82%85%E4%B8%8A%E9%97%A8%E6%9C%8D%E5%8A%A1/#keyfrom=dict2.index
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https://www.youdao.com/w/eng/%E6%A1%82%E6%9E%97%E4%B8%87%E5%92%8C%E7%83%AD%E6%B0%B4%E5%99%A8%E7%BB%B4%E4%BF%AE%E7%94%B5%E8%AF%9D%E2%98%8E0773-3563336%E2%98%8E%E9%99%84%E8%BF%91%E5%B8%88%E5%82%85%E4%B8%8A%E9%97%A8%E6%9C%8D%E5%8A%A1/#keyfrom=dict2.index
除了21日外，天文爱好者还可在19日、20日、22日、23日夜间进行观测，可能会有数量上的意外收获。
中国天文学会会员、天津市天文学会理事史志成介绍说：“21时30分，猎户座流星雨的辐射点从东北方升起，此时月亮已经落下，月光不会对流星的观测造成影响。”
“在天气晴好的条件下，喜欢流星雨的朋友可在22时过后，选择一处光污染小、视野开阔的地方进行观测，可观测至翌日清晨。”
天文预报显示，今年猎户座流星雨的主峰值流量出现在10月21日，预计每小时流量在20颗左右。
猎户座流星雨的特征非常明显，流星速度极快且轨迹长，亮流星较多。
研究表明，猎户座流星雨经常会出现一些子峰值，这使得有时在主峰值前后的几晚会出现和极大期差不多的流星数量。
https://www.youdao.com/w/eng/%E6%A1%82%E6%9E%97%E4%B8%87%E5%AE%B6%E4%B9%90%E7%83%AD%E6%B0%B4%E5%99%A8%E7%BB%B4%E4%BF%AE%E7%94%B5%E8%AF%9D%E2%98%8E0773-3563336%E2%98%8E%E9%99%84%E8%BF%91%E5%B8%88%E5%82%85%E4%B8%8A%E9%97%A8%E6%9C%8D%E5%8A%A1/#keyfrom=dict2.index
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除了21日外，天文爱好者还可在19日、20日、22日、23日夜间进行观测，可能会有数量上的意外收获。
中国天文学会会员、天津市天文学会理事史志成介绍说：“21时30分，猎户座流星雨的辐射点从东北方升起，此时月亮已经落下，月光不会对流星的观测造成影响。”
“在天气晴好的条件下，喜欢流星雨的朋友可在22时过后，选择一处光污染小、视野开阔的地方进行观测，可观测至翌日清晨。”
