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2021年09月08日:仙女大星系方向的深空影像-(The Deep Sky Toward Andromeda)
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2017年11月29日:M42:猎户座大星云-(M42: The Great Orion Nebula)
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2017年08月06日:银河与炸裂的流星-(Milky Way and Exploding Meteor)
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2024年02月11日:直指月亮的火箭烟尘影子-(Rocket Plume Shadow Points to the Moon)
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2021-10-15
2021年10月15日:NGC 289:南天的涡漩-(NGC 289: Swirl in the Southern Sky)
2021年10月15日:NGC 289:南天的涡漩-(NGC 289: Swirl in the Southern Sky)--原图下载{mtitle title="NGC 289:南天的涡漩"/}Image Credit &Copyright:Mike Selby说明: 在大约7千万光年远处的壮丽螺旋星系NGC 289,比我们的银河系还要大。这个几乎侧向的星系,在明亮的核心和色彩缤纷的中央盘面边缘,接着极为暗淡的泛蓝螺旋臂。而这些幅员宽广的螺旋臂,绵延至远离星系核心超过10万光年之处。此外,在这张清晰的望远镜星系影像的右下方,主螺旋臂看似遇到一个小型、弥漫而且正在和庞大NGC 289进行交互作用的椭圆伴星系。想当然耳,位在这片星野前景带着星芒的恒星,是位在南天玉夫座方向的银河繁星。{lamp/}原文:{mtitle title="NGC 289: Swirl in the Southern Sky"/}Image Credit &Copyright:Mike SelbyExplanation: About 70 million light-years distant, gorgeous spiral galaxy NGC 289 islarger than ourown Milky Way.Seen nearly face-on, its bright core and colorful central disk give wayto remarkably faint, bluish spiral arms.The extensive armssweep well over 100 thousand light-years from the galaxy's center.At the lower right in this sharp,telescopic galaxy portraitthe main spiral arm seems toencounter a small, fuzzy ellipticalcompanion galaxy interacting with enormous NGC 289.Of course spiky stars are in the foreground of the scene.They lie within the Milky Way toward the southern constellationSculptor.
2021年10月15日
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2020-12-24
2020年12月24日:星系NGC 1055-(Portrait of NGC 1055)
2020年12月24日:星系NGC 1055-(Portrait of NGC 1055)--原图下载{mtitle title="星系NGC 1055"/}Image Credit &Copyright:Martin Pugh说明: 位在鲸鱼座方向,距离我们只有6千万光年远的庞大美丽螺旋星系NGC 1055,是一个小星系群最大的成员星系。这个侧向我们、大小约为100,000光年的宇宙岛,略大于我们的银河系。在上面这幅NGC 1055影像里,彩色带星芒的恒星是在我们银河系内的前景恒星。不过,带着特徵粉红色泽的恒星形成区,则散布在这个遥远星系纤薄盘面的蜿蜒尘埃带上。在这张深空影像里,除了记录了更遥远的星系之外,还呈现了延伸到NGC 1055的鼓核和盘面上下的盒状星系晕。这些带着黯淡条状结构的星系晕,可能是约100亿年前被这个庞大星系拆散的伴星系之零散碎片。{lamp/}原文:{mtitle title="Portrait of NGC 1055"/}Image Credit &Copyright:Martin PughExplanation: Big, beautiful spiral galaxy NGC 1055 is a dominant member ofa small galaxy groupa mere 60 million light-years away towardthe aquatically intimidating constellation Cetus.Seen edge-on, the island universe spans over 100,000 light-years,a little larger than ourown Milky Way galaxy.The colorful, spiky stars decorating this cosmicportraitof NGC 1055 are in the foreground, well within the Milky Way.But the telltale pinkish star formingregions are scattered throughwinding dust lanes along the distant galaxy's thin disk.With a smattering of even more distant background galaxies, thedeep image also reveals a boxy halo that extendsfar above and below the central bluge and disk of NGC 1055.The halo itself is laced with faint, narrow structures,and could represent the mixed and spread outdebris from a satellite galaxydisrupted bythe larger spiral some10 billion years ago.
2020年12月24日
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2018-04-05
2018年04月05日:NGC 289: 南天的涡漩-(NGC 289: Swirl in the Southern Sky)
2018年04月05日:NGC 289: 南天的涡漩-(NGC 289: Swirl in the Southern Sky)--原图下载{mtitle title="NGC 289: 南天的涡漩"/}Image Credit &Copyright: Adam Block,ChileScope说明: 在大约7千万光年远处的壮丽螺旋星系NGC 289,比我们的银河系.要来得大。这个侧向的星系,明亮核心和色彩缤纷的中央盘面,外围突然转换成极为暗淡的泛蓝螺旋臂。而这些幅员宽广的螺旋臂,绵延至远离星系核心超过10万光年之处。此外,在这张清晰的望远镜星系影像的右下方,主螺旋臂看似遇到一个小型、弥漫而且正在和庞大NGC 289进行交互作用的椭圆伴星系。很明显的,带着星芒的恒星位在这片星野的前景,是位在南天玉夫座方向的银河繁星。{lamp/}原文:{mtitle title="NGC 289: Swirl in the Southern Sky"/}Image Credit &Copyright: Adam Block,ChileScopeExplanation: About 70 million light-years distant, gorgeous spiral galaxy NGC 289 is largerthan ourown Milky Way.Seen nearly face-on, its bright core and colorful central disk give wayto remarkably faint, bluish spiral arms.The extensivearms sweep well over 100 thousand light-years from the galaxy's center.At the lower right in this sharp,telescopicgalaxy portrait themain spiral arm seems toencounter a small, fuzzy ellipticalcompanion galaxy interacting with enormous NGC 289.Of course the spiky stars are in the foreground of the scene.They lie within the Milky Way toward the southern constellationSculptor.
2018年04月05日
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2018-01-25
2018年01月25日:车轮星系-(Cartwheel of Fortune)
2018年01月25日:车轮星系-(Cartwheel of Fortune)--原图下载{mtitle title="车轮星系"/}Image Credit: ESA,NASA说明: 二个星系互撞,意外撞出了一个日常物品的宇宙级样本──车轮星系。车轮星系位在玉夫座内,是离我们大约5百万光年远的一个星系团之成员,而此星系团的二个成员小星系,也出现在上面这张影像的左侧。车轮星系的外围,镶有一圈直径高达150,000光年,由极端明亮新诞生大质量恒星所组成的庞大星系环。当星系互撞时,它们会穿过彼此,不过它们的恒星鲜少发生碰撞。然而,星系的重力场,却会因为互撞而受到严重的扰动。事实上,这个环状结构,就是源自一个小星系穿过另一个大星系,而所引起的重力扰动,压缩星际气体和尘埃,造成一波由撞击点向外传播的恒星诞生波,酷似在水塘表面传播的涟漪。此範例中的大星系,原先或许是一个螺旋星系,外观可能和我们银河系有点类似,但是碰撞后就成了这副模样…不过,那个闯了祸的小星系后来怎么啦?{lamp/}原文:{mtitle title="Cartwheel of Fortune"/}Image Credit: ESA,NASAExplanation: By chance, a collision of two galaxies has created a surprisinglyrecognizable shape on a cosmic scale,TheCartwheel Galaxy.The Cartwheel is part of a group of galaxies about 500 millionlight years away in the constellation Sculptor.Two smaller galaxies in the group are visible on the left.The Cartwheel Galaxy's rim is animmensering-like structure 150,000 lightyears in diameter composed of newly formed,extremely bright, massive stars.When galaxiescollide they pass through each other,their individual stars rarely coming into contact.Still, the galaxies' gravitational fields are seriouslydistorted by the collision.In fact, the ring-like shapeis the result of the gravitationaldisruption caused by a small intruder galaxy passingthrough a large one,compressing the interstellar gas and dust andcausing a a star formation wave to move out fromthe impact point like a ripple across the surface of a pond.In this case the large galaxy may have originally been a spiral,not unlike our own Milky Way, transformedinto the wheel shape by the collision.But ...what happened to the small intruder galaxy?
2018年01月25日
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2017-11-09
2017年11月09日:NGC 1055的特写影像-(NGC 1055 Close-up)
2017年11月09日:NGC 1055的特写影像-(NGC 1055 Close-up)--原图下载{mtitle title="NGC 1055的特写影像"/}Image Credit &Copyright: Processing - Robert Gendler,RobertoColombariData -European Southern Observatory,Subaru Telescope (NAOJ),et al.说明: 位在鲸鱼座方向,距离我们只有6千万光年远的庞大美丽螺旋星系NGC 1055,是一个小星系群里最大的成员星系。这个侧向我们、大小约为100,000光年的宇宙岛,略大于我们的银河系。在上面这幅NGC 1055的特写影像里,彩色恒星是位在我们银河系内的前景恒星。不过,带着特徵粉红色泽的恒星形成区,则散布在这个遥远星系纤薄盘面蜿蜒的尘埃带上。在这张深空影像里,除了更遥远的星系之外,还呈现了延伸到NGC 1055的鼓核和盘面上下的盒状星系晕。这些带着黯淡条状结构的星系晕,可能是大约100亿年前被这个庞大星系拆散解的伴星系之零散碎片。{lamp/}原文:{mtitle title="NGC 1055 Close-up"/}Image Credit &Copyright: Processing - Robert Gendler,RobertoColombariData -European Southern Observatory,Subaru Telescope (NAOJ),et al.Explanation: Big, beautiful spiral galaxy NGC 1055 is a dominant member ofa small galaxy groupa mere 60 million light-years away towardthe aquatically intimidating constellation Cetus.Seen edge-on, the island universe spans over 100,000 light-years,a little larger than ourown Milky Way.The colorful stars in this cosmicclose-upof NGC 1055 are in the foreground, well within the Milky Way.But the telltale pinkish star formingregions are scattered throughwinding dust lanes along the distant galaxy's thin disk.With a smattering of even more distant background galaxies, thedeep image also reveals a boxy halo that extendsfar above and below the central bluge and disk of NGC 1055.The halo itself is laced with faint, narrow structures,and could represent the mixed and spread outdebris from a satellite galaxydisrupted bythe larger spiral some10 billion years ago.
2017年11月09日
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2016-03-04
2016年03月04日:玉夫座的星系NGC 134-(Sculptor Galaxy NGC 134)
2016年03月04日:玉夫座的星系NGC 134-(Sculptor Galaxy NGC 134)--原图下载{mtitle title="玉夫座的星系NGC 134"/}Image Credit &Copyright: CHART32 Team,Processing - Volker Wendel说明: NGC 134可能不是玉夫座最着名的螺旋星系。话虽如此,这个迷人的宇宙岛显然是南天的望远镜珍宝。在这幅清晰的宇宙影像里,可见到它明亮的核心、带着结块的尘埃带、鬆散的螺旋臂、以及镶着星芒的银河前景恒星和相对娇小的星系NGC 131。几乎是侧视的NGC 134,距离大约有6千万光年远,大小则在150,000光年上下,比我们的银河系还要大。NGC 134's扭曲的盘面和暗淡的外围结构,显示它过去曾与邻近星系发生过引力互扰。类似远为邻近而且较明亮的玉夫座星系NGC 253,有些尘埃卷鬚看似从星系盘伸展出来,而且上头还散布着泛蓝星团和粉红色的恒星形成区。(Sculptor 玉夫座)明日的图片: home for the weekend{lamp/}原文:{mtitle title="Sculptor Galaxy NGC 134"/}Image Credit &Copyright: CHART32 Team,Processing - Volker WendelExplanation: NGC 134 is probably not the best known spiral galaxy in theconstellation Sculptor.Still, the tantalizing island universe is a clearly atelescopic treasure in southern skies.It shares a bright core, clumpy dust lanes, and loosely wrappedspiral arms with spiky foreground stars of the Milky Way and themore diminutive galaxy NGC 131 inthissharp cosmic vista.From a distance of about 60 million light-years,NGC 134 is seen tilted nearly edge-on.It spans some 150,000 light-years, making it even larger than ourown Milky Way galaxy.NGC 134'swarped disk and faint extensions give theappearance of past gravitational interactions with neighboringgalaxies.Like the much closer and brighter Sculptorgalaxy NGC 253, tendrils of dustappear to rise from a galactic disk sprinkled with blue star clustersand pinkish star forming regions.
2016年03月04日
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