File:Orbiting in the Habitable Zone of Two Suns.jpg

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English: This diagram compares our own solar system to Kepler-47, a double-star system containing two planets, one orbiting in the so-called "habitable zone." This is the sweet spot in a planetary system where liquid water might exist on the surface of a planet.

Unlike our own solar system, Kepler-47 is home to two stars. One star is similar to the sun in size, but only 84 percent as bright. The second star is diminutive, measuring only one-third the size of the sun and less than one percent as bright. As the stars are smaller than our sun, the systems habitable zone is closer in.

The habitable zone of the system is ring-shaped, centered on the larger star. As the primary star orbits the center of mass of the two stars every 7.5 days, the ring of the habitable zone moves around.

This artist's rendering shows the planet comfortably orbiting within the habitable zone, similar to where Earth circles the sun. One year, or orbit, on Kepler-47c is 303 days. While not a world hospitable for life, Kepler-47c is thought to be a gaseous giant, slightly larger than Neptune, where an atmosphere of thick bright water-vapor clouds might exist.

For more, visit: http://www.nasa.gov/mission_pages/kepler/news/kepler-47.html
Русский: Сравнительная диаграмма планет и обитаемых зон Солнечной системы и Kepler-47.
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29 August 2012, 02:45 (Release date as stated at International Astronomical Union release iau1205 [

This media was produced by the International Astronomical Union (IAU), under the identifier iau1205b.

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Source Orbiting in the Habitable Zone of Two Suns
Author NASA/JPL-Caltech/T. Pyle

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current06:00, 29 August 2012Thumbnail for version as of 06:00, 29 August 20123,400 × 2,400 (452 KB)ComputerHotline (talk | contribs){{Information |Description={{en|This diagram compares our own solar system to Kepler-47, a double-star system containing two planets, one orbiting in the so-called "habitable zone." This is the sweet spot in a planetary system where liquid water might ...

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