自由漂浮的哈伯太空望远镜
[align=center][color=red][b]影像提供:[/b] [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://science.ksc.nasa.gov/shuttle/missions/sts-82/mission-sts-82.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhhbsytV2b24KKtnUBQ5yjnpgsKFJg][color=red]STS-82 Crew[/color][/url][color=red] , [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.stsci.edu/&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhi4ltniJ-AplPP4jC4J3aFElIatfw][color=red]STScI[/color][/url][color=red] , [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.nasa.gov/&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhiDdU0ZNt5wWZv75cjmsT3zvxWNSg][color=red]NASA[/color][/url] [/align][img]http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/image/0211/hst_sts82_big.jpg[/img]
[color=green][b]说明:[/b]大部分的望远镜是架设在地表上的，为何要把一些望远镜放到太空中呢？ [align=left]在地表上，你可以架设一个较重的望远镜，而且可以比较容易从事维修工作。 [/align][align=left]然而， [url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.seds.org/billa/bigeyes.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhipK2nMUuOfV1ybUqU2pN86eYqcuw]在地面上的望远镜[/url]必须面临望穿[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://liftoff.msfc.nasa.gov/academy/space/atmosphere.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhjgcCrQsNw3QjycetN2VnUO6Clftw]地球大气[/url]的困境。 [/align][align=left]首先， [url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://csep10.phys.utk.edu/astr161/lect/earth/atmosphere.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhj3tvcF6aguna4ZxbuxjRPPXK4LEQ]地球大气[/url]遮挡了大部分的[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhj2cfc9OVcEPDeH4S-aFr1EFFRNmQ]电磁波段[/url] ，只让可见光与部分的电波到达地面。 [/align][align=left]除了可见光与电波之外，使用其他波段来探测宇宙的望远镜，就必须被放到大气外的太空中， [url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://chandra.harvard.edu/about/axaf_mission.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhhEvhF48tQk6k2feaxkODUBRE3Hcg]钱德拉X-光观测站(Chandra X-ray Observatory)[/url]就是其中的一个典型例子。 [/align][align=left]其次， [url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.eso.org/projects/aot/introduction.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhjV5VWOtH7CAuETJf1unVaOzFqIpA]地球大气也会是使得星点变得模糊不清[/url] 。 [/align][align=left]造成星点[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap000725.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhhOa3aJbk-tVUF7vm4fYvEzFtDapw]模糊不清[/url]的原因，是来自于大气持续的移动以及大气密度不停的变化所造成的。 [/align][align=left]如[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://spaceflight.nasa.gov/gallery/images/shuttle/sts-82/html/s82e5937.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhjT6l6Yyc6OtCS0m5lrkcQ7Cm8UUg]上图所示[/url]的[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap010806.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhicGgU86wNvSowOcoypfp6ec1tO-g]哈伯太空望远镜[/url] ，由于它飞行于地球大气之外，使它可获得清晰的影像。 [/align][align=left]事实上，即使哈伯太空望远镜比[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap990629.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhjrUArnxe9URrzhxr7hdc3tqB33oA]地面上最大的光学望远镜[/url]小上15倍，但是它所拍得的影像还是比较清晰。 [/color][/align][align=left][color=green]未来的计划中，将建造一个更大型[/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.stsci.edu/ngst/&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhi3L9x99u-Ai0-3X1mitj5l7Se1FQ][color=green]光学太空望远镜[/color][/url][color=green] 。[/color]::42:: ::42:: ::42:: [size=2][color=magenta](转自成大天文学教室)[/color][/size][/align]
[[i] 本帖最后由 zheng123 于 2008-8-20 06:00 编辑 [/i]] 我在琢磨，这张照片是怎么拍的？ 修理后 宇航员把他从航天飞机里踢出去 拍的
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就算我们能发射这玩意有啥用？今天去吃肯德基，又涨价了。人家拿面包都能赚取丰厚的利润，我们就是出口稀土和发射卫星都还亏本。
汰渍又涨价了。这个月钱又不够用了。 在航天飞机上拍的吧::42:: ::42:: ::42:: 应该是航天飞机上拍的吧！::070821_01.jpg:: 4#
挣的钱和自己的努力是不分家的，也就是0.01%是靠命 那么多的精彩图片都是从这里得来的啊！收藏。 是啊!哈伯望远镜给我们带来了太多精彩照片了!!!::42:: ::42:: ::42::
沈阳宏海制造各种果味棉花糖机彩色果味棉花糖机024-82116562
**** 作者被禁止或删除 内容自动屏蔽 **** 希望嫦娥N号以后，国家也搞个，期待我们自己的太空望远镜，页:
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