The sands of time are running out for the central star of this hourglass-shaped planetary nebula. 在这一酷似沙漏形状的星云内,“时间之沙”即将从中央星之中流逝殆尽。
With its nuclear fuel exhausted, this brief but spectacular closing phase of MyCn18 - better known as the Engraved Hourglass Nebula - occurs as its outer layers are ejected.
随着其本身的核燃料的消耗几近枯竭,被称为“沙漏星云”的MyCn18的最外层开始朝外喷射,它这一短暂而又壮阔的生命也行将结束。
Located 8,000 light-years away from Earth in the southern constellation Musca, the sun-like star's core is in the process of becoming a cooling, fading white dwarf.
“沙漏星云”MyCn18距离地球8000光年,位于南天苍蝇座,这颗类似于太阳的星核进入了逐渐冷却的阶段,并慢慢变成了一颗白矮星。
Astronomers used the Hubble Space Telescope to make a series of images of planetary nebulae in the mid-1990s, including this one.
上世纪九十年代中期,天文学家们运用哈勃太空望远镜拍摄到了这一星云的众多图像,其中便包括了这一张。
Delicate rings of colourful glowing gas - nitrogen-red, hydrogen-green, and oxygen-blue - outline the tenuous walls of the hourglass.
红色氮气、绿色氢气和蓝色氧气这些彩色发光气体共同组成了这个形状与沙漏极其相似的星云。
【沙漏星云喷射瞬间如同人眼】相关文章:
★ 生命中的小瞬间
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2020-09-15
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