सितंबर 2012 को पुरालेखित. अभिगमन तिथि 8 अगस्त 2012. "Kepler-22b: A 2.4 Earth-radius Planet in the Habitable Zone of a Sun-like Star". मूल से 2 अगस्त 2014
Clark. [1] See figure of the Earth and Earthradius for details. Recent measurements from satellites suggest that the Earth is, in fact, slightly pear-shaped
{L}{4\pi \sigma T_{\rm {eff}}^{4}}}}} , where R {\displaystyle R} is the radius, L {\displaystyle L} is the luminosity, T e f f {\displaystyle T_{\rm {eff}}}