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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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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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2013-06-04
2013年06月04日:氢原子、氧原子、硫原子光谱的猎户座大星云-(Orion Nebula in Oxygen, Hydrogen, and Sulfur)
2013年06月04日:氢原子、氧原子、硫原子光谱的猎户座大星云-(Orion Nebula in Oxygen, Hydrogen, and Sulfur)--原图下载{mtitle title="氢原子、氧原子、硫原子光谱的猎户座大星云"/}Image Credit & Copyright: C�sar Blanco Gonz�lez说明: 一些天文景观激发人的无限想像,像是邻近着名的孕育恒星的温床─猎户座大星云。星云里色彩鲜明的气体,围绕着位于广大星际分子云边缘的炙热年轻恒星。影像中,许多可见的细微结构实际是冲击波造成的,前端移动速度快的物质推挤移动速度慢的气体。猎户座大星云的跨幅约40光年,离我们约1500光年远,和太阳系一样,位在银河系相同的螺旋臂上。肉眼可见的猎户座大星云,在着名的猎户座腰带的左下方,可以找到它的蹤迹。上面这张影像,是根据发射三种不同颜色的氢原子、氧原子、硫原子光谱而合成。在未来十万年,包含马头星云的猎户座分子云複合体,将慢慢散开。{lamp/}原文:{mtitle title="Orion Nebula in Oxygen, Hydrogen, and Sulfur"/}Image Credit & Copyright: C�sar Blanco Gonz�lezExplanation: 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 above 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 above 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.
2013年06月04日
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猎户座
里的蓝色反射星云 NGC 1977-(NGC 1977: Blue Reflection N" target="_blank" rel="noopener noreferrer">
猎户座里的蓝色反射星云 NGC 1977-(NGC 1977: Blue Reflection N" />
2001-07-22
猎户座
里的蓝色反射星云 NGC 1977-(NGC 1977: Blue Reflection N" target="_blank" rel="noopener noreferrer"> 2001年07月22日:
猎户座
里的蓝色反射星云 NGC 1977-(NGC 1977: Blue Reflection N
![2001年07月22日:<a href="http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html">猎户座里的蓝色反射星云 NGC 1977-(NGC 1977: Blue Reflection Nebula in Orion)](https://apod.nasa.gov/apod/image/0107/ngc1977_aat_big.jpg) [2001年07月22日:<a href="http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html">猎户座里的蓝色反射星云 NGC 1977-(NGC 1977: Blue Reflection Nebula in Orion)--原图下载](https://apod.nasa.gov/apod/image/0107/ngc1977_aat.gif){mtitle title="<a href="http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html">猎户座里的蓝色反射星云 NGC 1977"/}Credit & Copyright: David Malin(AAO),AATB说明: 猎户座星云 (Orion Nebula)位在猎户座 (Orion)着名的三颗腰带星附近,在肉眼中,它是一团迷濛的光斑。上面影像中的星云,是猎户座星云的一部份,它因为反射附近亮星的星光,所以呈现蓝色的色泽。会什么反射星云会是蓝色的呢?因为星云的云气反射星光时,蓝光被散射的效率比红光高,也因此反射星云就会具有蓝色的色泽。星云周围的黝黑暗带是星际尘埃,它的主要成份是细针状的碳质微粒。{lamp/}原文:{mtitle title="NGC 1977: Blue Reflection Nebula in Orion"/}Credit & Copyright: David Malin(AAO),AATBExplanation: The Orion Nebula is visible to the unaided eye as a fuzzy patch near the famousbelt of three stars in the
2001年07月22日
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1998-02-01
1998年02月01日:NGC 1977: Blue Reflection Nebula in Orion-(NGC 1977: Blue Reflection Nebula in Orion)
1998年02月01日:NGC 1977: Blue Reflection Nebula in Orion-(NGC 1977: Blue Reflection Nebula in Orion)--原图下载{mtitle title="NGC 1977: Blue Reflection Nebula in Orion"/}Credit: Anglo-Australian Telescopephotograph by David Malin Copyright: Anglo-Australian TelescopeBoardExplanation: The Orion Nebula is visible to the unaided eye as a fuzzy patch near the famousbelt of three stars in the constellation Orion. The above picture captures a part of the Orion Nebula that primarily reflects light from bright Orion stars. This reflection nebula appears bluebecause the blue light from the neighboring stars scatters more efficiently from nebula gas than does red light. The dark lanes are composed of mostly interstellar dust - fine needle-shapedcarbon grains.{lamp/}原文:{mtitle title="NGC 1977: Blue Reflection Nebula in Orion"/}Credit: Anglo-Australian Telescopephotograph by David Malin Copyright: Anglo-Australian TelescopeBoardExplanation: The Orion Nebula is visible to the unaided eye as a fuzzy patch near the famousbelt of three stars in the constellation Orion. The above picture captures a part of the Orion Nebula that primarily reflects light from bright Orion stars. This reflection nebula appears bluebecause the blue light from the neighboring stars scatters more efficiently from nebula gas than does red light. The dark lanes are composed of mostly interstellar dust - fine needle-shapedcarbon grains.
1998年02月01日
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