流星雨 演示文稿

世界七大流星雨
• • • • • • • Leo 狮子座 Gemini 双子座 Orion 猎户座 Perseus 英仙座 Taurus 金牛座 Draco 天龙座 Lyra 天琴座
狮子座
• Leonid meteor shower is called ‘the king of meteor ’shower .Leonid meteor shower occurs as there is a known as Temple • Tuttle of the comet. Leonid meteor shower is a typical periodic meteor shower, whose a cycle is about 33 years. • 狮子座流星雨堪称“流星雨之王”。狮子 座流星雨产生的原因是由于存在一颗叫坦 普尔•塔特尔的彗星狮子座流星雨是一个典 型的周期性流星雨，它的的周期约为33年。
金牛座
• Meteor showers are named after the constellation in which the radiant appears，for example the Taurus. Taurus is a meteor shower associated with a comet named Encke . because the radiant sky looks like in Taurus,so the meteor showers was namede of time is from later October to early November, it is also called Halloween fireworks. • 流星雨是由发出光源的所在星座而命名，例如英 仙座流星雨。金牛座流星雨是个与恩克彗星相关 联的流星雨，因为辐射点看似来自天空中的金牛 座而得名，因为出现的时间在十月底至十一月初， 因此也被称为万圣节烟火。
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• Of the millions who saw Haley’comet in 1986,how many people will live long enough to see it return in the twenty – first century. • 1986年看见哈雷彗星的千百万人当中，有 多少人能够长寿到足以目睹它在二十一世 纪的回归呢
天琴座
• As a well-known meteor shower Lyra occurs from April 15 to April 28 each year. Therefore, it is also known as Lyra April meteor shower .last but not least ，This meteor shower has been observed for 2600 years • 天琴座流星雨是出现在每年的4月15日至4月28日 的著名流星雨。更重要的是，这个流星雨已经被 观察了2600年之久。
哈雷彗星
• Harley’comet was calculated in 1704 by a British astronomer-Haley first, its cycle time is about 76 years . • 哈雷彗星是由英国天文学家哈雷在1704年 最先算出它的轨道而得名，每隔76年它回 归一次
With the view of meteor shower
Meteor showers
• As we all know, the world has seven meteor showers. The fundamental reason for the formation of meteor shower is due to the formation of broken comet. • 众所周知，世界上有七大流星雨。而形成 流星雨的根本原因是由于彗星的破碎而形 成的。
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•I would like to see the Haley’comet in 2062 with my classmates and Miss Ning
双子座
• The first Geminids meteors suddenly appeared in1862. It originated in an asteroid which was discovered in 1983.and Geminids meteors is the remains of the Comet. But to be diffirent with the short Leonids , Gemini meteor shower can usually continues about 10 days. • 1862年，第一次双子座流星雨突然出现。它源自 一颗1983年才被发现的小行星，属于燃尽的彗星 遗骸。不过与短暂的狮子座流星雨不同，双子座 流星雨通常可持续10天左右。