Super Earth-size Planet Confirmed Around Bright Star
01 The Solar System PIA10231, mod02 by Image Editor
License (according to Flickr): Attribution License
License (according to Flickr): Attribution License
A research team led by Steve Howell, NASA Ames Research Center, has announced the discovery of an exoplanet orbiting one of the brightest stars in the Kepler field of view. Coined Kepler-21b, the planet is approximately 1. 6 times the radius of Earth and nearly ten times the mass of Earth. Circling its host star every 2. 8 days, Kepler-21b orbits at a distance of six million km – nearly ten times closer than Mercury orbits the sun. The surface temperature is calculated to be 2,960 Fahrenheit. While this temperature is nowhere near the habitable zone in which liquid water might be found, the planet’s size is approaching that of Earth. The parent star, HD 179070, a little hotter and brighter than the sun, is 352 light years away. Somewhat similar to the sun, the parent star has a mass of 1. 3 solar masses, is larger at 1.
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Kepler
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Steve Howell
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FieldTerminology: Mercury
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Organization: National Optical Astronomy Observatory
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Organization: Ames Research Center
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Organization: NASA
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