Ross 128 b is a super Earth exoplanet that orbits an 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.

PLANET TYPE
Super Earth
DISCOVERY DATE
2017
MASS
1.4 Earths
PLANET RADIUS
1.11 x Earth
(estimate)
ORBITAL RADIUS
0.0496 AU
ORBITAL PERIOD
9.9 days
ECCENTRICITY
0.12
DETECTION METHOD