Ficheiro:Kepler-20f Planet.jpgDescriptionKepler-20f Planet.jpg English: This is an artist's conception of Kepler-20f, the closest object to the Earth in terms of size ever discovered
Ficheiro:Kepler-20f.pngEnglish Kepler-20f applies to jurisdiction: United States of America determination method: work of the federal government of the United States determination
Ficheiro:Sizing Up Exoplanets-ru.jpgderived from: Comparing the size of Earth, Mars, and exoplanets of Kepler-20 and Kepler-42.jpg: English applies to jurisdiction: United States of America determination