Kepler-22b is a confirmed exoplanet orbiting a Sun-like star Kepler-22. It is the first exoplanet in the habitable zone that is orbiting a Sun-like star. It was detected by Kepler in 2009 and confirmed by NASA in 2011. It has an ESI of 1971 0.71. Its radius is 2.38 Earths, according to Borucki et al. 2012 (Radius according to Morton et al. 2016 is 2.04 Earths).