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.Detailed information about planet Ross 128 b and its parameters. Planet parameters Publications Observability Predictor Planet. Basic informations 30 parameters. Name Ross 128 b Planet