Kepler circumbinary planets,illustration. Comparison of the relative sizes of several circumbinary planets that have been discovered with the Kepler Space Observatory. The smallest (left) is Kepler-47 b,followed by Kepler-413 b,Kepler-453 b,Kepler-16 b,and the largest,Kepler-1647 b. Kepler-1647 b is substantially larger than any of the previously known circumbinary planets (those planets orbiting a binary star system). Kepler-1647 b is nearly identical to Jupiter in both size and mass,but it is much warmer as it is in the habitable zone of its system. It is around 3700 light years from Earth,in the constellation of Cygnus. The discovery of Kepler-1647 b was announced on 13 June 2016 | |
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