Hot Planet Osiris (Illustration) : 無料・フリー素材/写真
Hot Planet Osiris (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 is an artist's rendition of the gas giant planet HD 209458b (unofficially named Osiris) located 150 light-years away in the constellation Pegasus. This is a "hot Jupiter" planet, estimated to be 220 times the mass of Earth. The planet's atmosphere is a seething 2,150 degrees Fahrenheit (1,180 degrees Celsius). It orbits very closely to its bright, Sun-like star, and its orbit is tilted edge-on to Earth. This allowed the Hubble Space Telescope to make precise measurements of the chemical composition of the giant planet's atmosphere as starlight filtered though it. Astronomers were surprised to find much less water vapor in the atmosphere than standard planet-formation models predict.For more information, visit: hubblesite.org/contents/news-releases/2014/news-2014-36.htmlCredit: NASA, ESA, and G. Bacon (STScI) |
| 撮影日 | 2019-08-15 12:59:24 |
| 撮影者 | NASA Hubble |
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