没准我顺便还可以研究研究那流星群。
该流星群速度可达每秒66公里。
The shooting stars are falling at a speed of 66 km per second.
对流星群的研究作了简明而系统的介绍。
Studies on meteoroid streams are briefly and systematically presented.
彗星的喷发速度在流星群的演化过程中起着重要作用。
The cometary ejection play a crucial role in formation and evolution of the meteoroid stream.
如果流星来源于哈雷彗星，那么为什么会叫猎户座流星群呢？
If the meteors originate in Comet Halley, why are they called the Orionids?
流星群，也称流星雨，通常是慧星慧尾的尘埃或者从小行星上脱落的小块物质引起的。
Meteors, also called shooting stars, normally begin as bits of dust from the tails of comets or even small pieces chipped off asteroids.
重点叙述流星天文学的历史与现状；流星群的地面和空间观测；流星雨观测和理论辐射点；
Especially, the history and status of meteoroid astronomy, the ground-based and space observations of meteoroid streams, the observed and theoretical radiants about meteor showers;
然而在另一些年份，狮子座流星群可以突然暴风骤雨般在每小时爆发出远远超过一千颗以上的流星。
In other years, however, the Leonids can suddenly erupt in spectacular meteor storms, with rates of more than a thousand meteors an hour.
将作者在变质量天体力学所得理论结果应用于太阳质量损失对流星群轨道根数变化的长期效应上。
The secular influence of solar mass-loss on the orbital elements of meteor steams is examined by using the method of celestial mechanics of variable mass in this paper.
其次对这群古老的流星群做了一些新的研究和探讨，得出五项结果，其中活动周期是很值得再研究的一项。
And then, five items of results on these ancient meteors are obtained by some new studies and exploration, in which the period of activity is one merits further study.
在11月17日下午4点45分左右流星群在天空滑过的数量将达到峰值，但这完美的流星雨景观将与北美和欧洲的观测者们无缘相见。
With the highest number of meteors streaking across the skies around 4:45 p.m. Et on November 17, the full Leonids peak will be effectively invisible for viewers in North America and Europe.
在11月17日下午4点45分左右流星群在天空滑过的数量将达到峰值，但这完美的流星雨景观将与北美和欧洲的观测者们无缘相见。
With the highest number of meteors streaking across the skies around 4:45 p. m. ET on November 17, the full Leonids peak will be effectively invisible for viewers in North America and Europe.
狮子座流星群的得名是由于它们流星辐射点位于狮子座。根据你所处的地理位置，狮子座一般会在凌晨1点到3点左右出现在地平线上的东北方向。
The Leonids are so named because they seem to radiate from the constellation Leo, the lion, which rises above the northeastern horizon between 1 a.m. and 3 a.m., depending on your location.
狮子座流星群的得名是由于它们流星辐射点位于狮子座。根据你所处的地理位置，狮子座一般会在凌晨1点到3点左右出现在地平线上的东北方向。
The Leonids are so named because they seem to radiate from the constellation Leo, the lion, which rises above the northeastern horizon between 1 a.m. and 3 a.m., depending on your location.
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