This newly discovered Earth-sized planet… | The Planetary Society

planet 128Ross 128 b is a super Earth exoplanet that orbits a M-type star. Its mass is 1.4 Earths, it takes 9.9 days to complete one orbit of its star, and is 0.0496 AU from its star. Its discovery was announced in 2017.European scientists announced the discovery of a world orbiting nearby star Ross 128. The planet, named Ross 128 b, has a predicted temperature range that could allow