行星狀星雲 NGC 1514 ,來自韋伯望遠鏡
Planetary Nebula NGC 1514 from Webb

發表日期:2025-04-15
當恆星的核燃料耗盡時會發生什麼? 對於像我們太陽這樣的恆星來說,中心會凝結成白矮星,而外部大氣則會被排入太空,形成行星狀星雲。 行星狀星雲 NGC 1514 被排出的外部大氣在可見光下看似一團氣泡。 但是,從詹姆斯-韋伯太空望遠鏡(James Webb Space Telescope)在紅外線下看到的景象(如圖所示)卻證實了另一種說法:在這種光線下,星雲呈現出明顯的沙漏形狀,可以解釋為沿著對角線看到的圓柱體。 如果你仔細觀察星雲的中心,還能看到一顆明亮的中心恆星,它是雙星系統的一部分。 更多的觀測可能會更好地揭示這個星雲是如何演變的,以及中心恆星是如何共同作用產生有趣的圓柱體和氣泡的。 在宇宙中跳躍隨機 APOD 生成器
原文: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. Jump Around the Universe: Random APOD Generator
※ 本文由萌芽機器人自動轉貼自每日一天文圖(Astronomy Picture of the Day,APOD),原文為英文,正體中文是透過 DeepL 翻譯及 OpenCC 進行自動處理,內容僅供參考,若有任何錯誤之處還請見諒!
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