artist rendition
Artist's concept

Ross 128 b is a unknown exoplanet that orbits a M-type star. Its mass is at least 1.4 Earth, 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
Unknown
DISCOVERY DATE
2017
MASS
at least 1.4 Earth
PLANET RADIUS
Unknown
ORBITAL RADIUS
0.0496 AU
ORBITAL PERIOD
9.9 days
ECCENTRICITY
0.116
DETECTION METHOD
Radial Velocity