急需一篇关于狮子座流星雨的英文文章
答案:3 悬赏:50 手机版
解决时间 2021-02-12 15:06
- 提问者网友：斑駁影
- 2021-02-12 05:15
希望，词句用简单的句型。不要用复合句，那种复杂的句子。
最佳答案
- 五星知识达人网友：几近狂妄
- 2021-02-12 06:34
Astronomers are predicting that the Leonids could experience an outburst of about 500 per hour on November 17. Although Asia is favored for the outburst, observations are encouraged around the world on the mornings of November 17 and 18, as better than normal rates could be seen. The moon will not be an issue.
The Leonid meteor shower has produced some of the most spectacular meteor displays in history, but it is unfortunately periodic in nature.
The Leonids generally begin on November 13 and end on November 21, with maximum generally occurring during the night of Novemer 17/18. The Leonids are barely detectable on the beginning and ending dates, but observers are generally treated to displays of about 10 meteors per hour on the night of maximum. About every 33 years, the Leonids enter a phase of enhanced activity that accompanies the return of its parent comet. During these periods, rates can amount to hundreds and even thousands of meteors per hour. The last such enhanced period occurred during the period of 1998-2002 and the Leonids have been winding down ever since.
There are other, weaker meteor showers going on around the same time as the Leonids. The Leonids move very fast. When you see a meteor, mentally trace it backwards. If you end up at Leo then you have probably seen a Leonid meteor!
本文可供参考，自己再改改吧
The Leonid meteor shower has produced some of the most spectacular meteor displays in history, but it is unfortunately periodic in nature.
The Leonids generally begin on November 13 and end on November 21, with maximum generally occurring during the night of Novemer 17/18. The Leonids are barely detectable on the beginning and ending dates, but observers are generally treated to displays of about 10 meteors per hour on the night of maximum. About every 33 years, the Leonids enter a phase of enhanced activity that accompanies the return of its parent comet. During these periods, rates can amount to hundreds and even thousands of meteors per hour. The last such enhanced period occurred during the period of 1998-2002 and the Leonids have been winding down ever since.
There are other, weaker meteor showers going on around the same time as the Leonids. The Leonids move very fast. When you see a meteor, mentally trace it backwards. If you end up at Leo then you have probably seen a Leonid meteor!
本文可供参考，自己再改改吧
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- 1楼网友：风格不统一
- 2021-02-12 08:48
1
狮子座流星雨（11月18日） 据国际天文学家日前的预报，２００９年将有较为强烈的狮子座流星雨出现。这一预测打破了几年来的“狮子座流星雨处于宁静期”的说法。狮子座流星雨的峰值将出现在北京时间１１月１８日５时４３分（可能会后延３０分钟－６０分钟）。届时，每小时最大流量约为５００颗，这将是“次暴雨级别”的。公众从１８日凌晨２时至天亮都可对该流星雨进行观测。 2
双子座流星雨（12月7日-12月17日） 就如贺岁大片一样，双子座流星雨一般都会在岁末如期而至，“上映档期”将从１２月７日一直持续到１７日。２００９年双子座流星雨将于１５日凌晨达到极盛，每小时理论流星数最多可达到１２０颗。双子座流星雨非常适合观测，不但流星的速度较慢，而且明亮的流星还会留下白色的余迹。
- 2楼网友：往事隔山水
- 2021-02-12 07:44
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