Fil:Kepler-20 system.jpg

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Beskrivelse

BeskrivelseKepler-20 system.jpg	English: The two Earth-size planets, which are presumably rocky, are Kepler-20e and Kepler-20f, and the three larger gas planets are Kepler-20b, Kepler-20c and Kepler-20d. The arrangement of the planets from the closest to its star to the farthest is: b, e, c, f and d, with the ordering of the letters reflecting the time at which the planets were initially discovered.
Dato	28. september 2012, 19:16:43
Kilde	http://kepler.nasa.gov/news/nasakeplernews/index.cfm?FuseAction=ShowNews&NewsID=172
Opphavsperson	NASA/Ames/JPL-Caltech

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