NASAのインスタグラム(nasa) - 3月29日 01時17分

Atmosphere of a Hot Gas Giant: The last decade has seen a bonanza of planet discovered outside our solar system. Nearly 2,000 have been confirmed so far, and more than 5,000 candidate exoplanets have been identified. Many of these exotic worlds belong to a class known as "hot Jupiters." These are gas giants like Jupiter but much hotter, with orbits that take them feverishly close to their stars. The turbulent atmosphere of a hot, gaseous planet known as HD 80606b, situated 190 light-years from Earth, is shown in this simulation based on data from our Spitzer Space Telescope. The planet spends most of its time far away from its star, but every 111 days, it swings extremely close to the star, experiencing a massive burst of heat. Spitzer measured the whole heating cycle of this planet, determining its coolest (less than 400 degrees Fahrenheit) and hottest (2,000 degrees Fahrenheit) temperatures.

Image Credit: NASA/JPL-CalTech

#nasa #exoplanet #spitzer #astronomy #galaxy #star #planets #telescope #science

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