哈伯望远镜拍摄的巨大火星
[align=center][color=red][b]Credit:[/b] [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://marswatch.tn.cornell.edu/Welcome.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=ALkJrhh_eTqlRUKTW8kJLaJOpgF856AXPw][color=red]J. Bell[/color][/url][color=red] ( [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.astro.cornell.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=ALkJrhhQu6Bp9tOKhvYNb5kPbG783Q_1Yw][color=red]Cornell U.[/color][/url][color=red] ), [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.spacescience.org/Welcome/SSIPeople/Bios/Wolff/1.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=ALkJrhjps3fBOsjqn-iYkgvZNjwUP30OdQ][color=red]M. Wolff[/color][/url][color=red] ( [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.spacescience.org/&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=ALkJrhgo2VyJTYlGppu98D8pBELrBdx1MA][color=red]SSI[/color][/url][color=red] ) et al., [/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=ALkJrhgcCW3w0neGemhPeOJ3-k98jP7dRA][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=ALkJrhgmCy-2wiRdZNOlb6-SU-APPqlSXA][color=red]NASA[/color][/url][color=red] [/color][/align][img]http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/image/0308/bigmars_hst_big.jpg[/img]
[color=green][b]说明:[/b]今天大约在[/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://scienceworld.wolfram.com/astronomy/UniversalTime.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=ALkJrhj0l-Gfd0_vYagQAzWGN74ADgplzw][color=green]世界时[/color][/url][color=green]早上十点， [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap030826.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=ALkJrhgliG8Z9iFzqh73TYSNjTu3baJAsA][color=green]火星[/color][/url][color=green]和[/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap000102.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=ALkJrhjLWLMOjPPZz2UthjI-Q5ho5PHBOg][color=green]地球[/color][/url][color=green]会运行到六万多年来最接近的位置。 [align=left]外观偏红的[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.nineplanets.org/mars.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=ALkJrhiz1oGglvrrz_8QThZvSkfOS-O4dg]火星[/url] ，会成为日落后[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://science.nasa.gov/headlines/y2003/25aug_closeencounter.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=ALkJrhimMnpOaTe8IWJY7VKZ9oGwmG1d4g]东方天空[/url]中最明亮的天体。 [/align][align=left]今晚和这星期的其他夜晚，世界上许多社区都会举办[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.planetary.org/marswatch2003/events.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=ALkJrhhyv7kTMlMr6CgsSohcoB2WZwihWg]2003年飙火星活动[/url] ，许多望远镜将对准这颗红色行星。 [/align][align=left][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://hubblesite.org/newscenter/archive/2003/22/image/a/&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=ALkJrhiG6gO7DK8NDps7hwGFBZ5JcCR1uQ]上面这张照片[/url]是[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=ALkJrhjDd5KAsELMr5sWk73kfuSYt7OgGw]哈伯太空望远镜[/url]在昨晚刚拍的火星影像，这也是从地球附近拍摄的[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://hubblesite.org/newscenter/archive/2003/22/&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=ALkJrhjkkbNTMU9DNIgs6-a7x2UseMrOhw]最清晰火星照片[/url] 。 [/align][align=left]影像中可见的表面特征包括位在下方的白色南[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap021224.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=ALkJrhizrmhfpSuuZSkV6m_dRdu7qvubzA]极冠[/url] 、中右方的圆形[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://photojournal.jpl.nasa.gov/catalog/PIA04646&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=ALkJrhgPivEO-dJmu_ycGpUX_bRgjNrRlA]惠更斯陨石坑[/url] 、右下方圆形的巨大[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.solarviews.com/cap/mgs/mgstopo5.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=ALkJrhiMFjDShue816v0KgTJbrayxuPuLg]希拉斯盆地[/url] ， [url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap010628.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=ALkJrhi3pzLxGyT73p9X2_Sj8lorvSqsuw]横跨全火星[/url]且具有众多小形陨石坑的淡色高原、以及[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap010628.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=ALkJrhi3pzLxGyT73p9X2_Sj8lorvSqsuw]巨大且暗色[/url]的平滑低地区。 [/color]
[color=green][b]说明：[/b]这两张用美国太空总署的哈伯太空望远镜所拍摄之影像，时间间隔是11小时，呈现火星几乎相反的两面。 [/align][align=left]拍摄这些照片时，正好是火星在六万多年来最接近地球的时候。
左边的照片是从中原时间7月27日早晨6:20到7:12所拍的一系列影像叠加出来的，当时火星和地球的距离有55757930公里。 [/align][align=left]影像可清楚看见下方白色的南极冠、沙鱼鳍状的暗色大西提平原、及影像右下角的淡色圆形希拉斯盆地。[/align][align=left]右边的影像是在火星最接近地球时拍摄的，当时它的距离为55757930公里，比拍摄左边照片时移近了1400公里。 [/align][align=left]这张照片是从中原时间7月27日晚上5:35到6:20所拍的一系列影像叠加出来的。 [/align][align=left]影像中上方的椭圆形奥林帕斯山清晰可辨，它是我们太阳系最大的火山。 [/align][align=left]在中右方的巨大暗斑是太阳湖(Solis Lacus)，它也常被称为是火星之眼。
这两张影像呈现了大部份的南极冠。 [/align][align=left]拍照时，正好是南半球夏季的季中，阳光不停地照射南极冰冠，使它缩得较小。 [/align][align=left]极冠上的橘红斑纹是沉降在冰冠上的火星沙尘。[/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 2008-8-19 06:33 编辑 [/i]] ::19:: ::19:: ::19:: 好美啊 记得以前在图版看到过这张图! 火星,好多人的家::070821_13.jpg:: ::070821_13.jpg:: 哈勃就是哈勃.....哪天我也发射一个上去.....::070821_10.jpg:: 咱这群里有出“哈勃”的吗？？::070821_13.jpg:: ::070821_13.jpg:: 有的话我收一个~~！！::070821_13.jpg:: ::070821_13.jpg:: ::070821_13.jpg:: 真希望我也能拍到yct27.gif 好大一个火星，要是我也能拍到这么大的火星就好了。 果然很大，不枉点此帖~~~
::070821_13.jpg:: 好爽啊！::070821_21.jpg:: 火星的南级冰冠看得很清楚啊!!::42:: ::42:: ::42:: 2030年后人类就可涉足了 弱弱地问一句：我记得大型天望 包括太空天王 好像都是反射吧 那么 图示火星的一轮蓝边 是色差么？ 好爽的镜子::070821_10.jpg::
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