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      英仙座流星雨

      「英仙座流星雨」是年度三大流星雨之一,今年預計出現的時間是七月十七日至八月二十四日,極大期預計在八月十三日的凌晨一時三十分至四時左右(圖二)此時在台灣正是子夜的時候。不過,當天的月相為下弦月,所以下半夜的觀看結果受到月亮的影響。午夜過後月亮西沈,下半夜的觀看結果應該比較好。其實,預估的極大期前後一、二天都有可能是流星出現的極大期。此次的ZHR(每小時出現最大流星數)預估約一百顆左右。有興趣的讀者,這是一個值得您去欣賞的天文景觀。

      • Keywords : 觀看, 下半夜, 預估, 讀者, 英仙, 興趣, 灣正, 流星雨, 流星出現, 每小, 極大期預計, 極大期, 月亮, 文景觀, 影響, 左右, 子夜, 圖二, 凌晨一, 其實
      0 0
      2009-08-11T04:22:04+0000


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