planet 12862K Followers, 1,531 Following, 480 Posts - PLANET 128 OFFICIAL (@planet128officiall) on : 24 jam melayani anda sampai puasRoss 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.