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File:Planet HD 189733b.jpg

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English: Artist’s impression of the extrasolar planet HD 189733 b, now known to have methane and water. Astronomers used the Hubble Space Telescope to detect methane — the first organic molecule found on an extrasolar planet. Hubble also confirmed the presence of water vapour in the Jupiter-size planet’s atmosphere, a discovery made in 2007 with the help of the Spitzer Space Telescope. They made the finding by studying how light from the host star filters through the planet’s atmosphere.
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来源 http://www.spacetelescope.org/images/heic0807a/
作者 ESA, NASA, G. Tinetti (University College London, UK & ESA) and M. Kornmesser (ESA/Hubble)

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当前2009年12月30日 (三) 22:282009年12月30日 (三) 22:28版本的缩略图2,600 × 3,500（3.41 MB）Justassresolution
2009年12月30日 (三) 22:222009年12月30日 (三) 22:22版本的缩略图1,280 × 1,723（260 KB）SupportstormImage Adjustment: Auto levels on contrast and color
2008年6月21日 (六) 20:142008年6月21日 (六) 20:14版本的缩略图1,280 × 1,723（208 KB）NuclearVacuum{{Information |Description={{en|1=Artist’s impression of the extrasolar planet HD 189733 b, now known to have methane and water. Astronomers used the Hubble Space Telescope to detect methane — the first organic molecule found on an

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