artist rendition
Artist's concept

Ross 128 b is a Super Earth exoplanet that orbits a M-type star. Its mass is at least 1.4Earths, 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
at least 1.4Earths
PLANET RADIUS
Unknown
ORBITAL RADIUS
0.0496 AU
ORBITAL PERIOD
9.9 days
ECCENTRICITY
0.116
DETECTION METHOD
Radial Velocity