Kepler-47b and Kepler-47c, exoplanets. Illustration of two of the gas giant planets in the Kepler-47 binary star system. Kepler-47b (blue, right) is t

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Kepler-47b and Kepler-47c, exoplanets. Illustration of two of the gas giant planets in the Kepler-47 binary star system. Kepler-47b (blue, right) is the inner planet. It has an orbital period of less than 50 days and is around 38,000 kilometres across (three times the size of the Earth). Kepler-47c (white, left) is the outer planet. It orbits in the system's habitable zone (where liquid water is possible), with an orbital period of 303 days and is slightly larger than Neptune (around 50,000 kilometres across). This planetary system is 4900 light years from Earth, in the constellation of Cygnus. It was discovered in 2012 by NASA's Kepler space telescope.

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Size: 3877px × 2262px
Photo credit: © NASA/JPL-CALTECH/T. PYLE/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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