planet 128Ross 128 b is a planet a bit larger and more massive than Earth. It orbits the host star at a distance of 0.0496 astronomical units (7.42 million kilometres). The planet’s orbit isKepler-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.