NASA 04月15日 12:14
Planetary Nebula NGC 1514 from Webb
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每日一天文图(APOD)展示了詹姆斯·韦伯空间望远镜(JWST)拍摄的行星状星云NGC 1514的红外图像,揭示了其独特的沙漏形状。该星云由一颗恒星耗尽核燃料后形成,其外层大气向太空膨胀。JWST的观测结果与可见光图像形成鲜明对比,后者呈现出气泡状结构。通过红外线,星云展现出清晰的圆柱形结构,并揭示了中心双星系统。这项研究有助于我们理解星云的演化过程和中心恒星的相互作用。

✨ 行星状星云NGC 1514的形成源于类似太阳的恒星耗尽核燃料,其外层大气被抛入太空,形成星云。

🌟 詹姆斯·韦伯空间望远镜(JWST)的红外观测揭示了NGC 1514呈现独特的沙漏形状,与可见光下的气泡状结构形成对比。

💫 在星云中心,可以观察到一个由两颗恒星组成的双星系统,它们共同作用产生了观测到的圆柱形结构和气泡。

☄️ 通过进一步观测,科学家们希望更好地了解星云的演化过程以及中心恒星如何协同作用。

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Discover the cosmos!Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2025 April 15

Planetary Nebula NGC 1514 from Webb
Image Credit: NASA, ESA, CSA,M. E. Ressler (JPL) et al.;Processing: Judy Schmidt

Explanation: What happens when a star runs out of nuclear fuel? For stars like our Sun, the center condenses into a white dwarf while the outer atmosphere is expelled into space to appear as a planetary nebula. The expelled outer atmosphere of planetary nebula NGC 1514 appears to be a jumble of bubbles -- when seen in visible light. But the view from the James Webb Space Telescope in infrared, as featured here, confirms a different story: in this light the nebula shows a distinct hourglass shape, which is interpreted as a cylinder seen along a diagonal. If you look closely at the center of the nebula, you can also see a bright central star that is part of a binary system. More observations might better reveal how this nebula is evolving and how the central stars are working together to produce the interesting cylinder and bubbles observed.

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韦伯望远镜 行星状星云 NGC 1514 红外线 天文学
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