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2004-03-13
2004年03月13日:Cerro Tololo (沙罗陀洛洛)天文台的星空-(A Cerro Tololo Sky)
2004年03月13日:Cerro Tololo (沙罗陀洛洛)天文台的星空-(A Cerro Tololo Sky)--原图下载{mtitle title="Cerro Tololo (沙罗陀洛洛)天文台的星空"/}Credit: Roger Smith, AURA, NOAO, NSF说明: 在智利的一座高山上,座落着南半球顶级观测地点之一的Cerro Tololo美洲天文台 (CTIO)。上面这张影像,呈现了此处数部大望远镜中的一部,它是4米口径的布兰柯望远镜 (Blanco Telescope)。望远镜建物的远方有分别属于小麦哲伦星系(左上角)、大麦哲伦星系(左下角)及我们银河系(右边)的许多恒星及它们所发出的的弥漫辉光。此外,你不难从布兰柯望远镜的右边,找到构成南十字这一个着名星群的四颗亮星。 这幅影像曝光的时间是20秒,拍摄这张照片的相机是一部设计要来进行天文观测的仪器,而照亮天文台结构的光全部都是星光。{lamp/}原文:{mtitle title="A Cerro Tololo Sky"/}Credit: Roger Smith, AURA, NOAO, NSFExplanation: High atop a Chilean mountain lies one of the premier observatories of the southern sky: theCerro Tololo Inter-AmericanObservatory (CTIO).Picturedabove is the dome surrounding one ofthesite's best known instruments, the4-meterBlanco Telescope.Far behind the dome are thousands of individualstars and diffuse light from three galaxies: the Small Magellanic Cloud (upper left), the Large Magellanic Cloud (lower left), and our Milky Way Galaxy (right). Also visible just to Blanco's right is the famoussuperposition of four bright stars known as the SouthernCross.A single 20 second exposure, this digital image was recorded witha sensitive detector intended for astronomical imaging.The observatory structures are lit solely by starlight.
2004年03月13日
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2002-11-09
2002年11月09日:Cerro Tololo (沙罗陀洛洛)天文台的夜空-(A Cerro Tololo Sky)
2002年11月09日:Cerro Tololo (沙罗陀洛洛)天文台的夜空-(A Cerro Tololo Sky)--原图下载{mtitle title="Cerro Tololo (沙罗陀洛洛)天文台的夜空"/}Credit & Copyright: Roger Smith, AURA, NOAO, NSF说明: 在智利的一座高山上,座落着南半球顶级观测地点之一的Cerro Tololo美洲天文台 (CTIO)。上面这张影像,呈现了Cerro Tololo美洲天文台数架主要望远镜中的一部,它是4米口径的布兰柯望远镜 (Blanco Telescope)。望远镜的背景是分别属于小麦哲伦星云(左上角)、大麦哲伦星云(左下角)及我们银河系(右边)的众多恒星及它们所发出的的弥漫辉光。 你不难从布兰柯望远镜的右边,找到构成南十字这一个着名星群的四颗亮星。 这幅影像曝光的时间是20秒,拍摄这张照片的相机是一部设计要来进行天文观测的仪器。照亮天文台结构的光全部都是星光。{lamp/}原文:{mtitle title="A Cerro Tololo Sky"/}Credit & Copyright: Roger Smith, AURA, NOAO, NSFExplanation: High atop a Chilean mountain lies one of the premier observatories of the southern sky: theCerro Tololo Inter-AmericanObservatory (CTIO).Picturedabove is the dome surrounding one ofthesite's best known instruments, the4-meterBlanco Telescope.Far behind the dome are thousands of individualstars and diffuse light from three galaxies: the Small Magellanic Cloud (upper left), the Large Magellanic Cloud (lower left), and our Milky Way Galaxy (right). Visible just to Blanco's right is the famoussuperposition of four bright stars known as the Southern Cross.A single 20 second exposure, this digital image was recorded witha sensitive detector intended for astronomical imaging.The observatory structures are lit solely by starlight.
2002年11月09日
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2002-01-29
2002年01月29日:温热氢气所呈现的南天-(The Southern Sky in Warm Hydrogen)
2002年01月29日:温热氢气所呈现的南天-(The Southern Sky in Warm Hydrogen)--原图下载{mtitle title="温热氢气所呈现的南天"/}Credit: SHASSA Team, NSF说明: 一座位于智利 配备着红色太阳眼镜的自动控制望远镜,已经拍摄整个南天达年余。得到结果如上图,这是一张将本银河系 含量最丰富的元素 : 氢 所最常发射出的可见光纪录得最完整的天图。我们可以看到由温热游离 氢所发射出的特殊的红光,虽然壮丽的发射星云在这种型态的红光(H-alpha)部分发出明亮的光辉,不过扩散的温热氢气延伸了整个银河系,并且清楚地指出较黯淡的氢气 与其他气体的位置,有时还可告诉我们星际气体 的複杂历史 。追蹤出本银河系 盘面的气体越过了图片中心,图上可见的巨大气体云 有的还是死亡恒星 所产生的逐步扩张中的气体壳层。上方的天图 取自南天 H-Alpha 巡天舆图 (SHASSA),显示出我们整个银河系是个大发射星云,儘管这是从极微弱的层次上来看。{lamp/}原文:{mtitle title="The Southern Sky in Warm Hydrogen"/}Credit: SHASSA Team, NSFExplanation: A robotic telescope with red sunglasses in Chile has been photographing the entire southern sky for years. The result, shown above, is the most complete sky map of the most common visible light emitted from the most abundant element in our Galaxy: hydrogen. A very specific red color emitted by warm ionized hydrogen was observed. Although spectacular emission nebulas glow brightly in this type of red light (H-alpha), a diffuse amount of warm hydrogen is spread throughout our Galaxy and its glow nicely indicates not only where darker hydrogen and other gasses may be located, but also the sometimes-complex history of interstellar gas. Gas tracking the plane of our Galaxy runs across the center, and huge gas clouds, some of which are the expanding shells of long dead stars, are also visible. The above map was derived from the Southern H-Alpha Sky Survey Atlas (SHASSA) and shows that our entire Galaxy is one big emission nebula, albeit at a quite faint level.
2002年01月29日
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2001-05-14
2001年05月14日:Cerro Tololo (沙罗陀洛洛)天文台的夜空-(A Cerro Tololo Sky)
2001年05月14日:Cerro Tololo (沙罗陀洛洛)天文台的夜空-(A Cerro Tololo Sky)--原图下载{mtitle title="Cerro Tololo (沙罗陀洛洛)天文台的夜空"/}Credit & Copyright: Roger Smith, AURA, NOAO, NSF说明: 在智利的一座高山上,座落着南半球顶级观测地点之一的Cerro Tololo天文台。而在上面这张影像中,呈现了Cerro Tololo美洲天文台 (CTIO)数架主要望远镜中的一部,它是4米口径的布兰柯望远镜 (Blanco Telescope)。望远镜的背景是分别属于小麦哲伦星云 (左上角)、大麦哲伦星云 (左下角)及我们银河系 (右边)的众多恒星及它们所发出的的弥漫辉光。你不难从布兰柯望远镜的右边,找到南十字 (Southern Cross)这一个着名的星群。{lamp/}原文:{mtitle title="A Cerro Tololo Sky"/}Credit & Copyright: Roger Smith, AURA, NOAO, NSFExplanation: High atop a Chilean mountain lies one of the premier observatories of the southern sky: Cerro Tololo. Pictured above is one of the premier telescopes of the Cerro Tololo Inter-American Observatory (CTIO) and of the past quarter-century: the 4-meter Blanco Telescope. Far behind the telescope are thousands of individual stars and diffuse light from three galaxies: the Small Magellanic Cloud (upper left), the Large Magellanic Cloud (lower left), and our Milky Way Galaxy (right). Visible just to Blanco's right is the famous superposition of four bright stars known as the Southern Cross.The observatory structures are lit solely by starlight.
2001年05月14日
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