M8:礁湖星云的中心
[align=center][color=red][b]影像版权与提供:[/b] [/color][email=kitahara@janis.or.jp][color=red]Yuugi Kitahara[/color][/email] [/align][img]http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/image/0101/m8_kitahara_big.jpg[/img]
[color=green][b]说明:[/b]在[/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.seds.org/messier/m/m008.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=ALkJrhg2W26resHTNP-qtzoRr808IRXm8g][color=green]礁湖星云(Lagoon Nebula)[/color][/url][color=green]的中心，可以看到[/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/emission_nebulae.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=ALkJrhge2H3TBGJECjccLi95AYV5gXpsmg][color=green]发出辉光的云气[/color][/url][color=green] 、星团和正在形成恒星的[/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap961229.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=ALkJrhjcX50fC5nkpph9JK__SVxLOt2n3w][color=green]物质与云气团块[/color][/url][color=green] 。 [align=left]在上面[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.janis.or.jp/users/kitahara/e-m8-95.jpg.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=ALkJrhi0BemQPH8rRO9F7OKqb1s2FeHMfw]这张影像[/url]中，位在中心的年轻[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/open_clusters.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=ALkJrhiyHVfguYlEUYRjdtEIDo9j8vjggQ]散散星团[/url]是NGC 6523。 [/align][align=left]这些恒星发出[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://snoopy.gsfc.nasa.gov/~orfeus2/ultraviolet.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=ALkJrhgH04kV3TQmtSeToBnSLTwIgdZRzA]高能量的星光[/url]使周围的[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://pearl1.lanl.gov/periodic/elements/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=ALkJrhippk8Z776Ve8dVAPkaO--he6UKYQ]氢[/url]气[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://csep10.phys.utk.edu/astr162/lect/light/ionization.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=ALkJrhjDlNC23H-eI2qYmLTRW1Y8XES3Cw]游离[/url] ，氢离子和[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.aip.org/history/electron/&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=ALkJrhgqJ2c-DZFl73m5Ai9eXBBoB-QmdA]电子[/url]复合时，就会[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://csep10.phys.utk.edu/astr162/lect/light/absorption.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=ALkJrhicq10F__r9kWhokcHLZ8pPFkoroA]辐射出红光[/url] 。 [/align][align=left][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.seds.org/billa/twn/n6523x.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=ALkJrhjslU-EknsLB5hVfS4TBCaCVyEyqw]礁湖星云[/url]的大小约有100光年，距离我们约5000 [url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.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=ALkJrhi8VmwZVieXFAlPBqS04esUOdV0nQ]光年[/url] ， [url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap980707.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=ALkJrhip8pr7zH85N6dQ5gZNocwqNJHGPQ]云气[/url]所占住的天区比[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap991108.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=ALkJrhhjJ9-eC3Wt5blXKgtGGv7q0nDRsQ]满月[/url]还大。 [/align][align=left]它位在[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.allthesky.com/constellations/const.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=ALkJrhjdwOi2cwJ762vxw5DplQPon4hemg]南天[/url]的[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.astronomical.org/constellations/sgr.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_4FpBW8FtWvhlpKpR9HmerdlvVA]半人马座(Sagittarius)[/url] ，在远离光害的区域用肉眼就能看到它。[/color] ::42:: ::42:: ::42:: [size=2][color=magenta](转自成大天文学教室)[/color][/size][/align] 拍的不错，很漂亮，GO GO 回油:victory: ::31:: :victory:
[[i] 本帖最后由 优哈优哈 于 2008-9-1 10:44 编辑 [/i]]
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