JWST拍摄的狮子头星云
(原标题: JWST Images The Lion's Head Nebula)
2026-08-26
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我们看到的是太阳的未来吗？今天，詹姆斯韦伯太空望远镜用它的NIRCam和MIRI仪器拍摄了狮子头星云（NGC 2392）的合成图像。狮子头星云是一颗类太阳恒星的残骸。这颗恒星无法维持其核心的核聚变以保持稳定。它开始向太空释放气体和尘埃层，形成了这个行星状星云。一个炽热的恒星核心，被称为白矮星，被留在狮子的鼻子里。别撅鼻子！来自白矮星的强烈辐射在膨胀过程中电离了气体，形成了不规则的气泡，形成了狮子的脸。在白矮星的辐射下幸存下来的尘埃团块和电离气体云构成了狮子的鬃毛。这张新的更详细的星云视图将帮助人类更多地了解气体和尘埃如何相互作用以及白矮星辐射。
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Are we looking at the future of our Sun? The James Webb Space Telescope captured today’s composite image of the Lion’s Head Nebula (NGC 2392) with its NIRCam and MIRI instruments. The Lion’s Head Nebula is the remnant of a Sun-like star. This star was unable to sustain the nuclear fusion in its core needed to remain stable. It began to shed layers of gas and dust into space, forming this planetary nebula. A hot stellar core, called a white dwarf, is left behind within the lion’s nose. Do not boop this nose! Intense radiation from the white dwarf is ionizing the gas as it expands, creating the irregular bubble that makes up the lion’s face. Dust clumps that have survived the white dwarf’s radiation and a cloud of ionized gas make up the lion’s mane. This new and more detailed view of the nebula will help humanity learn more about how the gas and dust interact with each other and the white dwarf radiation.