流星群

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 .

固定辐射点-流星群脱罗央群小行星的运动

Stationary radiant motion of Trojan group asteroid

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 .

纠正三个失误的流星群

Correcting Three Misjudged Meteoric Streams

流星群研究

Studies on Meteoroid Streams

其次根据流星群的条件，定出三条划分火流星群的原则。

And then , three principles are established for dividingbolide groups according to the condition of meteoric group .

比如在1966年11月，通常比较微弱的狮子座流星群震撼了所有人，它在仅一小时内就产生了10万颗流星。

In November 1966 , the normally weak Leonids surprised everyone and roared back to life , producing more than 100000 shooting stars in a single 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 .

本文简述了（1）流星群轨道升交点的变化和周期的变化都与喷发速度密切相关，（2）从流星雨的观测结果可推断出喷发速度，（3）喷发速度的理论模型和结果。

We briefly summarize our works in the node change and the period change of the stream related to the ejection , the ejection velocity deduced from meteor stream observation and the theoretical model of cometary ejection .

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 ;