
Relative sizes of all of the habitable-zone planets discovered to date alongside Earth. Left to right: Kepler-22b, Kepler-69c, Kepler-62e, Kepler-62f and Earth (except for Earth, these are artists' renditions).
Image credit: NASA Ames/JPL-Caltech.
上图是迄今为止已发现的处于宜居带位置的诸行星相对大小与地球对照图。,
从左往右依次是:
开普勒-22b,-69c,62e,-62f,地球(除地球是写实外,其他的都是艺术家的图画)