Super-Earths
Exoplanets
Super Earths
An extrasolar planet more massive than the Earth but less massive than 10 Earth masses. The first discovered super-Earth orbits an M4 V star named GJ 876. Its estimated mass is 7.5±0.7 Earth masses and it has an orbital period of 1.94 days. It is close to the host star, and the surface temperature is calculated to lie between 430 and 650 K.