Blue Hot Jupiter HD 189733b (Illustration) : 無料・フリー素材/写真
Blue Hot Jupiter HD 189733b (Illustration) / NASA Hubble
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | This artist's concept shows a "hot Jupiter" planet known as HD 189733b orbiting its star, HD 189733. The Hubble Space Telescope measured the actual visible-light color of the planet, which is deep blue. This color is not due to the presence of oceans, but is caused by the effects of a scorching atmosphere where silicate particles melt to make "raindrops" of glass that scatter blue light more than red light. The planet HD 189733b was discovered in 2005 and is so close to its star that it is gravitationally "tidally locked," so that one side always faces the star and the other side is always dark. Because the planet is only 63 light-years from Earth, a visitor to the planet would see many of the same stars we see in our nighttime sky, though the constellation patterns would be different. Our Sun and the nearest star to our Sun, Alpha Centauri, appear as two faint stars near the center of the illustration.For more information, visit: hubblesite.org/contents/news-releases/2013/news-2013-26.htmlCredit: NASA, ESA, and G. Bacon (AURA/STScI) |
| 撮影日 | 2019-09-30 08:38:21 |
| 撮影者 | NASA Hubble |
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