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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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2020-10-04
2020年10月04日:氧、氢和硫等原子发光波段的猎户大星云-(Orion Nebula in Oxygen, Hydrogen, and Sulfur)
2020年10月04日:氧、氢和硫等原子发光波段的猎户大星云-(Orion Nebula in Oxygen, Hydrogen, and Sulfur)--原图下载{mtitle title="氧、氢和硫等原子发光波段的猎户大星云"/}Image Credit & Copyright: César Blanco González说明: 鲜少有天文景观,能像着名的猎户座星云这个邻近的恒星育婴室,这么善于激发着人们的想像。这个星云的辉光云气,环拱着座落在一个庞大星际分子云里的炽热年轻恒星。而在这幅主题影像里的许多丝状云气结构,其上是激波前沿,在该处,高速移动的物质撞击慢速移动的气体。跨幅约40光年、距离约1,500光年的猎户座大星云,和太阳都位在银河系的同一旋臂上。座落在着名猎户座腰带三星左下方、轻易可辨的猎户座大星云,是个肉眼可见天体。上面这幅主题照片,呈现猎户星云在氢、氧与硫原子气体个发光波段 的面貌。包括 马头星云在内的整个猎户星云複合体,在接下来的100,000年之内,会慢慢的消散匿迹。{lamp/}原文:{mtitle title="Orion Nebula in Oxygen, Hydrogen, and Sulfur"/}Image Credit & Copyright: César Blanco GonzálezExplanation: Few astronomical sights excite the imagination like the nearby stellar nursery known as the Orion Nebula. The Nebula's glowing gas surrounds hot young stars at the edge of an immense interstellar molecular cloud. Many of the filamentary structures visible in the featured image are actually shock waves - fronts where fast moving material encounters slow moving gas. The Orion Nebula spans about 40 light years and is located about 1500 light years away in the same spiral arm of our Galaxy as the Sun. The Great Nebula in Orion can be found with the unaided eye just below and to the left of the easily identifiable belt of three stars in the popular constellation Orion. The image shows the nebula in three colors specifically emitted by hydrogen, oxygen, and sulfur gas. The whole Orion Nebula cloud complex, which includes the Horsehead Nebula, will slowly disperse over the next 100,000 years.
2020年10月04日
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2019-01-02
2019年01月02日:WISE卫星拍摄的猎户座红外光影像-(The Orion Nebula in Infrared from WISE)
2019年01月02日:WISE卫星拍摄的猎户座红外光影像-(The Orion Nebula in Infrared from WISE)--原图下载{mtitle title="WISE卫星拍摄的猎户座红外光影像"/}Image Credit: WISE, IRSA, NASA; Processing & Copyright :Francesco Antonucci说明: 猎户座大星云是一个很有趣的天体。肉眼即可见的猎户座大星云,外观像是猎户座里的一片模糊小光斑。这张合成自广域红外线巡天卫星(WISE)四个红外光波段数据的影像,证实猎户座星云是一个熙攘喧嚣的区域,蜂拥着最近形成的恒星、炙热气体及黝黑尘埃。而驱动猎户座星云(M42)发光的主要能源,则是位在这幅主题影像中心附近的四边形星团内之恒星。影像里环拱在亮星周围的橘色辉光,源自被此区域大量複杂丝缕状尘埃所反射的星光。包括 马头星云在内的猎户座分子云複合体,在接下来的10万年里将逐渐分道扬镳。{lamp/}原文:{mtitle title="The Orion Nebula in Infrared from WISE"/}Image Credit: WISE, IRSA, NASA; Processing & Copyright :Francesco AntonucciExplanation: The Great Nebula in Orion is an intriguing place. Visible to the unaided eye, it appears as a smallfuzzy patch in the constellation of Orion.Butthis image, an illusory-color four-panel mosaic taken in different bands of infrared light with the Earth orbiting WISE observatory, shows the Orion Nebula to be a bustling neighborhood of recently formed stars, hot gas, and dark dust. The power behind much of the Orion Nebula (M42) is the stars of the Trapezium star cluster, seennear the center of the featured image.The orange glow surrounding the bright stars pictured here is their own starlight reflected by intricate dust filaments that cover much of the region. The current Orion Nebula cloud complex, which includes the Horsehead Nebula, will slowly disperse over the next 100,000 years.
2019年01月02日
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2017-11-29
2017年11月29日:M42:猎户座大星云-(M42: The Great Orion Nebula)
2017年11月29日:M42:猎户座大星云-(M42: The Great Orion Nebula)--原图下载{mtitle title="M42:猎户座大星云"/}Image Credit & Copyright: Francesco Battistella说明: 鲜少有天文景观能像着名的猎户座星云,这个邻近的恒星育婴室这么善于激发着人们的想像。这个星云的辉光云气,环拱着位在一个庞大星际分子云里的炽热年轻恒星。而在这幅主题影像里的许多丝状云气结构,事实上是激波前沿,在该处,高速移动的物质遇到慢速移动的气体。跨幅约40光年、距离约1,500光年的猎户座大星云,和太阳都位在银河系的同一道旋臂上。座落在着名猎户座内、轻易可辨的腰带三星左下方之猎户座大星云,是个肉眼可见天体。上面这幅主题照片,是在上个月使用2小时长曝光拍摄的三色影像。包括马头星云在内的整个猎户座星云複合体,在接下来的100,000年之内,会慢慢的散开来。{lamp/}原文:{mtitle title="M42: The Great Orion Nebula"/}Image Credit & Copyright: Francesco BattistellaExplanation: Few astronomical sights excite the imagination like the nearby stellar nursery known as the Orion Nebula. The Nebula's glowing gas surrounds hot young stars at the edge of an immense interstellar molecular cloud. Many of the filamentary structures visible in the featured image are actually shock waves - fronts where fast moving material encounters slow moving gas. The Orion Nebula spans about 40 light years and is located about 1500 light years away in the same spiral arm of our Galaxy as the Sun. The Great Nebula in Orion can be found with the unaided eye just below and to the left of the easily identifiable belt of three stars in the popular constellation Orion. The featured image, taken last month, shows a two-hour exposure of the nebula in three colors.The whole Orion Nebula cloud complex, which includes the Horsehead Nebula, will slowly disperse over the next 100,000 years.
2017年11月29日
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2017-05-22
2017年05月22日:蹄铁湾上空的黄道光-(A Zodiacal Sky over Horseshoe Bend)
[2017年05月22日:蹄铁湾上空的黄道光-(A Zodiacal Sky over Horseshoe Bend)--原图下载](https://apod.nasa.gov/apod/image/1705/HorseShoeSky_Lane_3000.jpg"onMouseOver="if (document.images)document.imagename1.src='image/1705/HorseShoeSky_Lane_960_annotated.jpg';"onMouseOut="if (document.images)document.imagename1.src='image/1705/HorseShoeSky_Lane_960.jpg';){mtitle title="蹄铁湾上空的黄道光"/}Image Credit & Copyright: David Lane说明: 从地平线中间向上伸展的白光是怎么产生的?来自环绕太阳的尘埃。在每年的固定期间,太阳系内围带状分布的阳光反射尘埃,产生了在日出前很醒目的黄道光。这些缓慢迴旋掉向太阳的尘埃,主要来自昏暗的木族彗星。在这幅影像的黄道光前方,有美国.柯罗拉多河壮观的蹄铁湾景观。在黄道光后方绽放光芒则有:包括天狼星在内的多颗亮星、昴宿星团在内的数个泛蓝星系团和包括猎户座.巴纳德圈在内的众多红色星云。这幅由30张照片拼成的组合影像,摄于这个月初一个黑天暗地的晚上,当时摄影者的立足点离危险的悬崖只有15公分。{lamp/}原文:{mtitle title="A Zodiacal Sky over Horseshoe Bend"/}Image Credit & Copyright: David LaneExplanation: What's causing the unusual ray of white light extending upward from the central horizon?Dust orbiting the Sun.At certain times of the year, a band of sun-reflecting dust from the inner Solar System rises prominently before sunrise and is called zodiacal light. The dust originates mostly from faint Jupiter-family comets and slowly spirals into the Sun.Pictured, in front of the zodiacal light, is a spectacular view of Horseshoe Bend of the Colorado River. Emitted from well behind the zodiacal light is a spectacular sky that includes many bright stars including Sirius, several blue star clusters including the Pleiades, and an assortment of red nebulas including Barnard's Loop in Orion.The 30-image composite was taken earlier this month in nearly complete darkness only six inches from the edge of a dangerous cliff.
2017年05月22日
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2015-01-19
2015年01月19日:WISE卫星的红外光波段猎户座-(Infrared Orion from WISE)
2015年01月19日:WISE卫星的红外光波段猎户座-(Infrared Orion from WISE)--原图下载{mtitle title="WISE卫星的红外光波段猎户座"/}Image Credit: WISE, IRSA, NASA; Processing & Copyright :Francesco Antonucci说明: 猎户座大星云是一个很有趣的处所。肉眼即可见的猎户座大星云,看来像是猎户座里的一片模糊小光斑。这幅由广域红外线巡天卫星(WISE)在四个红外光波段拍摄的照片所合成之影像,证实猎户座星云是一个熙熙攘攘的的区域,拥挤着最近形成的恒星、炙热气体以及黝黑尘埃。而驱动猎户座星云(M42)发光的主要能量源则是四边形星团内的恒星,它们位在这幅广角影像的中心附近。环拱在亮星周围的橘色辉光,是被布满大部分此区域的丝缕状尘埃所反射的星光。包括马头星云在内的猎户座分子云团,在接下来的10万年里将逐渐散开。{lamp/}原文:{mtitle title="Infrared Orion from WISE"/}Image Credit: WISE, IRSA, NASA; Processing & Copyright :Francesco AntonucciExplanation: The Great Nebula in Orion is an intriguing place. Visible to the unaided eye, it appears as a smallfuzzy patch in the constellation of Orion.Butthis image, an illusory-color four-panel mosaic taken in different bands of infrared light with the Earth orbiting WISE observatory, shows the Orion Nebula to be a bustling neighborhood of recently formed stars, hot gas, and dark dust. The power behind much of the Orion Nebula (M42) is the stars of the Trapezium star cluster, seennear the center of the above wide field image.The orange glow surrounding the bright stars pictured here is their own starlight reflected by intricate dust filaments that cover much of the region. The current Orion Nebula cloud complex, which includes the Horsehead Nebula, will slowly disperse over the next 100,000 years.
2015年01月19日
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2013-10-10
2013年10月10日:M78的星尘和星光-(M78: Stardust and Starlight)
2013年10月10日:M78的星尘和星光-(M78: Stardust and Starlight)--原图下载{mtitle title="M78的星尘和星光"/}Image Credit &Copyright: Tony Hallas说明: 在富饶的猎户座里,到处都是星际尘埃云和光亮的云气。在这幅涵盖猎人腰带以北天区的望远镜彩色广角影像里,其中最明亮者之一是位在星野中心的M78。泛蓝的反射星云M78离我们约有1,500光年远,大小则约为5光年;它的蓝色泽,则来自尘埃偏好反射了邻近炽热年轻亮星的蓝色星光。在星野里随处可见的众多尘埃带和星云之中,包括很引注目、刚发现不久的麦克尼尔星云 (McNeil's Nebula),因为它和一颗类太阳恒星的形成有关;此外还有具有迹证性的许多晕红赫比格-哈罗天体,它们是由恒星诞生过程的高能喷流所造成的。 (译注:麦克尼尔星云是M78右上方、带淡黄晕的扇形星云,它左下方有二颗相邻的黄色恒星。){lamp/}原文:{mtitle title="M78: Stardust and Starlight"/}Image Credit &Copyright: Tony HallasExplanation: Interstellardust clouds and bright nebulae abound in the fertileconstellation of Orion.One of thebrightest,M78, is just left of center in this colorfultelescopic view, covering an area north ofOrion's belt.At a distance of about 1,500 light-years, thebluish nebula itselfis about 5 light-years across.Its blue tint is due to dustpreferentiallyreflecting the blue lightof hot, young stars in the region.Dark dust lanes and other nebulae can easily be tracedthrough this gorgeous skyscape.The scenealsoincludes the remarkableMcNeil's Nebula -- a newlyrecognized nebulaassociated withthe formation of a sun-like star, and the telltale reddish glow of manyHerbig-Haro objects, energetic jets from stars in the processof formation.
2013年10月10日
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