Tags: Planet.
Gliese 667 Cg is an unconfirmed exoplanet orbiting the star Gliese 667 C which is a member of the Gliese 667 triple star system. Gliese 667 Cg has a minimum mass of 4.41 Earth masses and cannot be more than 8.82 Earth masses. It is likely an ice planet with the possibility of a subsurface ocean.