planet 128Kepler-128 c is a super Earth exoplanet that orbits a F-type star. Its mass is 3.38 Earths, it takes 22.8 days to complete one orbit of its star, and is 0.16517 AU from its star.The planet, known as Ross 128 b, has a surface temperature that may be close to that of Earth, meaning it has the potential to sustain life.