月亮与星星
[align=center][color=red][b]合成影像版权:[/b] TA Rector, IP Dell'Antonio, [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.noao.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=ALkJrhjh-1uaXzivFXqPf_bpg52mkCfAMg][color=red]NOAO[/color][/url][color=red] , [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.aura-astronomy.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=ALkJrhhkw3EvFd1WqEGXFyVAyBtbwArl1w][color=red]AURA[/color][/url][color=red] , [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.nsf.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=ALkJrhj2LjYvQ9J1h11EIeBvdReRWwi7pw][color=red]NSF[/color][/url] [/align][img]http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/image/0109/moonstars_noao_big.jpg[/img]
[color=green][b]说明:[/b]这幅景象你一定不常见...一轮明月被炫目的繁星拱绕着。 [align=left]经过大气散射的明亮月光是会盖过微弱星光的，我们无法在利用[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap010428.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=ALkJrhj4zkwdwI_iwxGoQvSJuTqTpqPoKw]地面上[/url]望远镜拍得的[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://aa.usno.navy.mil/faq/docs/moon_phases.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=ALkJrhjCFe3JlwPHoIks_HeMv4mU2qZ1_w]月相[/url]中看到星星。 [/align][align=left]可是，甚至于在[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap001209.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=ALkJrhgwBbqc_lGF2K17u9QQlh0HykY2KQ]月球表面[/url]的摄影机都无法拍摄出[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.badastronomy.com/bad/tv/foxapollo.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=ALkJrhjF2D8NXmFT9V72_G1fSRTBAvmIGA#stars]任何背景星[/url] 。 [/align][align=left]为什么？ [/align][align=left]因为曝光时间太短了。 [/align][align=left]要[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.u-net.com/ph/mas/observe/lunar-p/lunar-p.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=ALkJrhjTdQ7E42kkK3faOtsbn25VSi16MQ]拍下[/url]明亮的月球表面影像，实际上只需数分之一秒，非常短的曝光时间。 [/align][align=left]但我们抬头所看到的背景星(星系!)要黯淡的多，往往需要曝光数分钟到数小时之久，这对月表拍摄来说则是严重的[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap010209.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=ALkJrhh5YxK6Iwe0JurmO0FVMQ5ijebLVQ]曝光过度[/url]了。 [/align][align=left]因此，[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.noao.edu/image_gallery/html/im0650.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=ALkJrhh5mbg3_PRfLuWeGzevXQbAUXymSQ]这幅震慑人心的景象[/url]当然是由两张数位影像合成的--一张曝光时间短，在[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap010809.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=ALkJrhjF0I8sAx7ivrx7nyhs7gKCY8SmKg]满月[/url]时记录了月表精致的细节﹔叠加上另一张曝光时间长，没有[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://seds.lpl.arizona.edu/nineplanets/nineplanets/luna.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=ALkJrhjDR2AVLE0_YY2ElMG1NfoCwJAhuA]月亮[/url]的星场。 [/color][/align][align=left][color=green]最后就形成了这张纵使不能用单一曝光时间拍摄，却深具戏剧性的[/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.lhl.lib.mo.us/pubserv/hos/moon/frontisp.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=ALkJrhhEZNix0lA3eD4WUXu_z2C5Hw0YEQ][color=green]月亮[/color][/url][color=green]和背景星图。[/color]::42:: ::42:: ::42:: [size=2][color=magenta](转自成大天文学教室)[/color][/size]
[/align][align=left][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap010907.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=ALkJrhjG5AE1jv-D0a-U2R5loAv_oAyW0A][color=#810081][/color][/url][/align]
[[i] 本帖最后由 zheng123 于 2008-8-23 08:48 编辑 [/i]] 月亮旁有很多小格子，难道是多张拼接成的？ 好图 存了....
谢谢分享啊 很漂亮啊::070821_21.jpg:: 什么镜子拍的::070821_11.jpg:: 台美了 ！！！我业想拍 月亮应该是局部拍摄后拼接而成才有如此多的细节，直接拍满月怕是很难拍到这样丰富的细节的，另外星星背景是合成的。
很精致的一张月图啊，感谢大力士分享！您辛苦了！ 呵呵!不谢不谢啦!!::42:: ::42:: ::42:: 非常漂亮，但是这月亮似乎与平时观测的不太一样！ ::48:: 好图，顶一下！ 真的很漂亮啊 已保存.....
白羊都评价了,这图没说的...... 虽然不求是，但的确意境很美滴一张图片，(*^__^*) 嘻嘻……
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