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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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2023-08-14
2023年08月14日:韦伯望远镜的环状星云-(The Ring Nebula from Webb and Hubble)
2023年08月14日:韦伯望远镜的环状星云-(The Ring Nebula from Webb and Hubble)--原图下载{mtitle title="韦伯望远镜的环状星云"/}Credit: NASA,ESA,CSA,JWST,HST;Processing: Zi Yang Kong, Go Webb!说明: 环状星云(M57)远比透过小望远镜所见的要複杂得多。通常轻易可见的是直径约1光年的中心环,然而,来自韦伯太空望远镜的这幅精采长曝光红外影像,深入的探索了这个热门的星云。在这幅经过数位强化的代表色主题影像里,中心环周围清楚可见的气体丝,形似宇宙之眼的睫毛。而长线形的结构,或许是环内的緻密气体结,遮挡来自内部的高能星光所产生的影子。环状星云是个细长形的行星状星云,为类太阳恒星演化抛出外层大气成为白矮星时,所产生的气体云。环状星云的中心椭圆结构,位在以乐器为名的天琴座方向约2500光年远之处。{lamp/}原文:{mtitle title="The Ring Nebula from Webb and Hubble"/}Credit: NASA,ESA,CSA,JWST,HST;Processing: Zi Yang Kong, Go Webb!Explanation: The Ring Nebula (M57), is more complicated than it appears through a small telescope. The easily visible central ring is about one light-year across,but this remarkable combined exposure by the James Webb Space Telescope and the Hubble Space Telescope explores this popular nebula with deep exposures in visible and infrared light.Strings of gas, like eyelashes around a cosmic eye, become evident around the Ringin this digitally enhanced featured image in assigned colors.These long filaments may be caused by shadowing of knots of dense gas in the ring from energetic light emitted within.The Ring Nebula is an elongated planetary nebula, a type of gas cloud created when a Sun-like star evolves to throw off its outer atmosphere to become a white dwarf star. The central oval in the Ring Nebula lies about 2,500 light-years away toward the musicalconstellationLyra.
2023年08月14日
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2021-08-18
2021年08月18日:环状星云的外环-(Rings Around the Ring Nebula)
2021年08月18日:环状星云的外环-(Rings Around the Ring Nebula)--原图下载{mtitle title="环状星云的外环"/}Image Credit: Hubble, Large Binocular Telescope,Subaru Telescope; Composition & Copyright: Robert Gendler说明: 环状星云(M57)的结构,比小望远镜所见的要複杂。轻易可见的中心环,宽约1光年,不过如这幅整合3部大望远镜协同观测数据的极深空影像所示,在离这团星云中心星很远之处,还有许多会散发辉光的环状云气丝。这幅组合影像,结合了氢原子的红光辐射、可见光和红外光。环状星云是个外观偏长的的行星状星云,是一颗类太阳恒星演化成白矮星时,所抛出的外层大气。环状星云位在天琴座方向约2,500光年远之处。{lamp/}原文:{mtitle title="Rings Around the Ring Nebula"/}Image Credit: Hubble, Large Binocular Telescope,Subaru Telescope; Composition & Copyright: Robert GendlerExplanation: The Ring Nebula (M57), is more complicated than it appears through a small telescope. The easily visible central ring is about one light-year across,but this remarkably deep exposure -a collaborative effort combining data from three different large telescopes -exploresthe looping filaments of glowing gas extending much farther from the nebula's central star.This composite image includes red light emitted by hydrogen as well asvisible and infrared light.The Ring Nebula is an elongated planetary nebula, a type of nebula created when a Sun-like star evolves to throw off its outer atmosphere to become a white dwarf star. The Ring Nebula is about 2,500 light-years away toward the musicalconstellationLyra.
2021年08月18日
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