File:Io Aurorae color.jpg
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Io_Aurorae_color.jpg (374 × 350 像素,檔案大小:143 KB,MIME 類型:image/jpeg)
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[編輯]描述Io Aurorae color.jpg |
English: This eerie view of Jupiter's moon Io in eclipse (left) was acquired by NASA's Galileo spacecraft while the moon was in Jupiter's shadow. Gases above the satellite's surface produced a ghostly glow that could be seen at visible wavelengths (red, green, and violet). The vivid colors, caused by collisions between Io's atmospheric gases and energetic charged particles trapped in Jupiter's magnetic field, had not previously been observed. The green and red emissions are probably produced by mechanisms similar to those in Earth's polar regions that produce the aurora, or northern and southern lights. Bright blue glows mark the sites of dense plumes of volcanic vapor, and may be places where Io is electrically connected to Jupiter. North is to the top of the picture, and Jupiter is towards the right. The resolution is 13.5 kilometers (8 miles) per picture element. The images were taken on May 31, 1998 at a range of 1.3 million kilometers (800,000 miles) by Galileo's onboard solid state imaging camera system during the spacecraft's 15th orbit of Jupiter. |
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來源 | Adapted from http://photojournal.jpl.nasa.gov/catalog/PIA01637 |
作者 | NASA/JPL/University of Arizona |
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[編輯]Public domainPublic domainfalsefalse |
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本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zh,NASA版權政策或JPL圖像使用政策) | ![]() |
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[編輯]The original description page was here. All following user names refer to en.wikipedia.
- 2007-05-25 20:23 Volcanopele 374×350× (88498 bytes) Adapted from NASA image release [http://photojournal.jpl.nasa.gov/catalog/PIA01637 PIA01637] Original caption: This eerie view of Jupiter's moon Io in eclipse (left) was acquired by NASA's Galileo spacecraft while the moon was in Jupiter's shadow. Gases
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目前 | 2014年3月6日 (四) 23:00 | ![]() | 374 × 350(143 KB) | Scanmap(留言 | 貢獻) | reencoded from lossless source without black border line, more pixels and in better quality |
2009年4月21日 (二) 00:21 | ![]() | 374 × 350(86 KB) | Yned(留言 | 貢獻) | {{Information |Description={{en|Adapted from NASA image release [http://photojournal.jpl.nasa.gov/catalog/PIA01637 PIA01637] Original caption: This eerie view of Jupiter's moon Io in eclipse (left) was acquired by NASA's Galileo spacecraft while the moo |
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