APOD251113 猎户座与奔跑者星云
猎户座与奔跑者星云
图像提供 & 版权[1]: R. Jay Gabany[2]
英文原文:Explanation: Few cosmic vistas can excite the imagination like The Great Nebula in Orion . Visible as a faint, bland celestial smudge to the naked-eye, the nearest large star-forming region sprawls across this sharp colorful telescopic image . Designated M42 in the Messier Catalog, the Orion Nebula's glowing gas and dust surrounds hot, young stars . About 40 light-years across, M42 is at the edge of an immense interstellar molecular cloud only 1,500 light-years away that lies within the same spiral arm of our Milky Way galaxy as the Sun. Including dusty bluish reflection nebula NGC 1977 , also known as the Running Man nebula at left in the frame, the natal nebulae represent only a small fraction of our galactic neighborhood's wealth of star-forming material. Within the well-studied stellar nursery, astronomers have also identified what appear to be numerous infant solar systems . 说明: 很少有宇宙景象能像猎户座大星云[3]一样激发人们的想像力。 从肉眼看来,这个离我们最近的大型恒星形成区域看似一个淡淡的天体模糊斑点,而在[4]清晰而色彩丰富的望远镜图像[5]中,它则横跨整个画面。 猎户座大星云在梅西耶星表中被编号为M42[6],其发光的气体和尘埃环绕着炽热的年轻恒星[7]。 M42的直径约40光年,位于一个巨大的分子云[8]边缘,该分子云距离我们仅1,500光年,与太阳位于银河系的同一条旋臂上。 包括图中左侧尘埃弥漫的蓝色反射星云NGC 1977[9](也称为奔跑的人星云)在内,这些诞生中的星云仅代表我们银河附近[10]中丰富的恒星形成物质的一小部分。 在研究较深入的恒星育婴室中,天文学家也发现了许多疑似处于早期阶段的太阳系[11]。
明日的图片: pixels in space[12]
Authors & editors: Robert Nemiroff[13] (MTU[14]) & Jerry Bonnell[15] (UMCP[16])
NASA Official: Amber Straughn Specific rights apply[17].
NASA Web Privacy[18], Accessibility[19], Notices[20];
A service of: ASD[21] at NASA[22] / GSFC[23],
NASA Science Activation[24]
& Michigan Tech. U.[25]
太空天文实验室(成功大学物理系)
<br/> 编辑:<a href="mailto:hantzong.su@gmail.com" style="color:gray;" target="_blank">苏汉宗</a>
编辑:陈炳志[26]
[1]http://apod.nasa.gov/apod/lib/about_apod.html#srapply
[2]http://www.cosmotography.com/index.html
[3]https://en.wikipedia.org/wiki/Orion_Nebula
[4]http://apod.nasa.gov/apod/ap150326.html
[5]https://cosmotography.com/images/small_gabany_M42_2025.html
[7]https://hubblesite.org/contents/media/images/2000/19/966-Image.html
[8]https://en.wikipedia.org/wiki/Orion_molecular_cloud_complex
[9]http://apod.nasa.gov/apod/ap230202.html
[10]https://solarsystem.nasa.gov/solar-system/beyond/overview/
[11]https://science.nasa.gov/image-detail/orion-nebula-proplyd-atlas/
[12]http://apod.nasa.gov/apod/ap251114.html
[13]http://www.phy.mtu.edu/faculty/Nemiroff.html
[15]https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
[17]http://apod.nasa.gov/apod/lib/about_apod.html#srapply
[18]https://www.nasa.gov/about/highlights/HP_Privacy.html
[19]https://www.nasa.gov/general/accessibility/
[20]https://www.nasa.gov/privacy/
[21]https://astrophysics.gsfc.nasa.gov/
[23]https://www.nasa.gov/centers/goddard/
[24]https://science.nasa.gov/learners
[26]mailto:alfred@ncku.edu.tw
http://apod.nasa.gov/apod/ap251113.html
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