File:Diagram_of_the_life_of_Sun-like_stars.jpg
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摘要
描述Diagram of the life of Sun-like stars.jpg |
English: Born from clouds of gas and dust, stars like our Sun spend most of their lifetime slowly burning their primary nuclear fuel, hydrogen, into the heavier element helium. After leading this bright and shiny life for several billion years, their fuel is almost exhausted and they start swelling, pushing the outer layers away from what has turned into a small and very hot core. These “middle-aged” stars become enormous, hence cool and red — red giants. All red giants exhibit a slow oscillation in brightness due their rhythmic “breathing” in and out, and one third of them are also affected by additional, slower and mysterious changes in their luminosity. After this rapid and tumultuous phase of their later life, these stars do not end in dramatic explosions, but die peacefully as planetary nebulae, blowing out everything but a tiny remnant, known as white dwarf. |
日期 | |
来源 | http://www.eso.org/public/images/eso0948a/ |
作者 | ESO/S. Steinhöfel |
许可协议
This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. | |
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知识共享署名4.0国际 简体中文(已转写)
7 12 2009
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当前 | 2013年6月1日 (六) 11:33 | 6,500 × 4,592(13.38 MB) | Stas1995 | {{Information |Description ={{en|1=Born from clouds of gas and dust, stars like our Sun spend most of their lifetime slowly burning their primary nuclear fuel, hydrogen, into the heavier element helium. After leading this bright and shiny life for s... |
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来源 | European Southern Observatory |
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提供人 | ESO/S. Steinhöfel |
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简称 |
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使用条款 |
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数据生成日期时间 | 2009年12月7日 (一) 00:00 |
关键词 | Stars |
联系信息 |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |