混乱的史帝芬五重星系
[align=center][color=red][b]影像提供:[/b] [/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.astro.psu.edu/users/charlton/&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=ALkJrhhlqo5tGIWKfpVq6wk0Vp6udzn7Yg][color=red]Jane C. Charlton[/color][/url][color=red] ( [/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.astro.psu.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=ALkJrhi23AwpsCORtkozh_eLEnyDH6BZyw][color=red]Penn State[/color][/url][color=red] ) et al., [/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.stsci.edu/hst/&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=ALkJrhhxo2WUmxE7cI-VDF9MFg-fQwZyVQ][color=red]HST[/color][/url][color=red] , [/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://sci.esa.int/&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=ALkJrhgu-VUF-Ma5Fq1pI8GMLNRU1gorUg][color=red]ESA[/color][/url][color=red] , [/color][url=http://203.208.37.104/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=ALkJrhh2WOEFuYhIPCADm4vnlr4pwmdZuw][color=red]NASA[/color][/url][/align][img]http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/image/0011/quintet_hst_big.jpg[/img]
[color=green][b]说明:[/b]在上面[/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://sci.esa.int/hubble/news/image.cfm%3Foid%3D24977%26ooid%3D24980&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=ALkJrhgeIzm749_4cjIfMLJhig6iO7XELA][color=green]这张影像[/color][/url][color=green]中，这四个靠得很近的星系到底在忙些什么呢？ [align=left][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.chapman.edu/oca/gallery2/htm-othr/steph-01.htm&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=ALkJrhgWu6qpGPvune-rYRE3wAu_SGBZKA]史帝芬五重星系(Stephan's Quintet)[/url]的大型星系，有四个出现在[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://sci.esa.int/hubble/news/image.cfm%3Foid%3D24977%26ooid%3D24980&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=ALkJrhgeIzm749_4cjIfMLJhig6iO7XELA]这张影像[/url]中，而第五个是在影像[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap980110.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=ALkJrhih_5K7K_C_vYay_imFjWlDf58-Rw]左下方[/url]的外头。 [/align][align=left]这四个星系，有三个的[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.astro.virginia.edu/~jh8h/glossary/redshift.htm&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=ALkJrhgImg_-DV92WSEzQL6DfmQqs2ZP9g]红位移量[/url]几乎相同，显示它们和我们之间的距离完全一样。 [/align][align=left]这三个星系正在[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap991109.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=ALkJrhjzbZyJtRu45r8LcOio117Ny8_kNQ]剧烈的互撞[/url]之中，透过强大的[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.windows.ucar.edu/cgi-bin/tour_def/glossary/tidal_forces.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=ALkJrhgf2Ql2o3MNP-0bRYICcRnb1U99pw]重力潮汐[/url] ，它们正在把对方撕开。 [/align][align=left]影像左下方的大型蓝色[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/spiral_galaxies.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=ALkJrhgIlTsJ_f8jbtHllOvgWSMZ8W4KrQ]螺旋星系[/url] ，是一个位在前景的星系，它离其他的星系很远，所以并没有参与这场[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap000209.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=ALkJrhihFOogKZQHDbef6bccgNSrjkzB6Q]宇宙大战[/url] 。 [/align][align=left][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://homepage.interaccess.com/~purcellm/ngc7319.htm&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=ALkJrhjdKLJGvBTVtgOxnLcvBY94sNu6Zw]史帝芬五重星系[/url]位在[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.seds.org/messier/map/map.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=ALkJrhioY17mxTt3BVzVT72-0-lkXxTM5w]北天[/url]的[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.seds.org/messier/map/Peg.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=ALkJrhi--cWDB8omHZS7PSltSDJ2xkxBxw]飞马座(Pegasus)[/url]内，距离我们约有三亿[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://chandra.harvard.edu/photo/cosmic_distance.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=ALkJrhh4EF0L4ILDkb0rd6qT1JAGhMJosw]光年[/url]远。 [/color]
[color=green]译注：史帝芬五重星系中，有三个是正在互撞的星系，另外两个只是视觉上凑巧在同一方向而已。[/color] ::42:: ::42:: ::42:: [size=2][color=magenta](转自成大天文学教室)[/color][/size][/align] 斗地主.....?
还有一个接下......::070821_13.jpg:: 不错，第二张拍的如此清晰，难得 五重的啊!真漂亮!!::42::
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