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2018-10-30
2018年10月30日:内蒙古上空的猎户座流星-(Orionids Meteors over Inner Mongolia)
2018年10月30日:内蒙古上空的猎户座流星-(Orionids Meteors over Inner Mongolia)--原图下载{mtitle title="内蒙古上空的猎户座流星"/}Image Credit & Copyright: Yin Hao说明: 流星不停的从猎户座射出来。不过,这是预料中的现象,因为每年的十月是猎户座流星雨的季节。上面这幅去年十月摄于中国.内蒙古的影像,呈现了20多颗接连出现在乌兰哈达火山上空的流星。这张主题影像里的众多流星痕 ,都可回溯到猎户腰带左上方,称为辐射点的小片天区。猎户座流星的前身,是哈雷彗星历次回归内太阳系时,所喷出的沙粒大小碎片。哈雷彗星其实造成了二群已知的流星雨,另一群是在每年五月可见的宝瓶η流星雨。每日天文图在一年前的今天所呈现之猎户座流星影像,除了摄于相同地点之外,也记录了同一部车子。在下个月,坦普─塔托彗星所造成的狮子座流星雨,应该会出现一些很明亮的流星痕。{lamp/}原文:{mtitle title="Orionids Meteors over Inner Mongolia"/}Image Credit & Copyright: Yin HaoExplanation: Meteors have been shooting out from the constellation of Orion. This was expected, as October is the time of year for the Orionids Meteor Shower. Pictured here, over two dozen meteors were caught in successively added exposures last October over Wulan Hada volcano in Inner Mongolia, China.The featured image shows multiple meteor streaks that can all be connected to a single small region on the sky called the radiant,here visible just above and to the left of the belt of Orion, The Orionids meteors started as sand sized bits expelled from Comet Halley during one of its trips to the inner Solar System. Comet Halley is actually responsible for two known meteor showers, the other known as the Eta Aquarids and visible every May. An Orionids image featured on APOD one year ago today from the same location shows the same car. Next month, the Leonids Meteor Shower from Comet Tempel-Tuttle should also result in some bright meteor streaks.
2018年10月30日
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2017-10-30
2017年10月30日:猎户座流星雨-(Orionid Meteors from Orion)
2017年10月30日:猎户座流星雨-(Orionid Meteors from Orion)--原图下载{mtitle title="猎户座流星雨"/}Image Credit & Copyright: Lu Shupei说明: 流星不停的从猎户座射出来。不过,这是预料中的现象,因为每年的十月是猎户座流星雨的季节。上面这幅上个周末摄于中国.内蒙古的影像,呈现了超过12颗接连出现在乌兰哈达火山上空的流星。这张主题影像里的多重流星痕,都可回溯到猎户腰带左上方,称为辐射点的小片天区。猎户座流星的前身,是哈雷彗星历次回归太阳系内围时,所喷出的沙粒大小碎片。哈雷彗星其实造成了二群已知的流星雨,另一群是在每年五月可见的宝瓶η流星雨。在下个月,坦普─塔托彗星所造成的狮子座流星雨,应该会出现一些很明亮的流星痕。{lamp/}原文:{mtitle title="Orionid Meteors from Orion"/}Image Credit & Copyright: Lu ShupeiExplanation: Meteors have been shooting out from the constellation of Orion. This was expected, as October is the time of year for the Orionids Meteor Shower. Pictured here, over a dozen meteors were caught in successively added exposures last weekend over Wulan Hada volcano in Inner Mongolia, China.The featured image shows multiple meteor streaks that can all be connected to a single small region on the sky called the radiant,here visible just above and to the left of the belt of Orion, The Orionids meteors started as sand sized bits expelled from Comet Halley during one of its trips to the inner Solar System. Comet Halley is actually responsible for two known meteor showers, the other known as the Eta Aquarids and visible every May. Next month, the Leonids Meteor Shower from Comet Tempel-Tuttle should also result in some bright meteor streaks.
2017年10月30日
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