artist rendition
Artist's concept

Kepler-421 b is a Neptune-like exoplanet that orbits a G-type star. Its mass is Unknown, it takes 1.9 years to complete one orbit of its star, and is 1.219 AU from its star. Its discovery was announced in 2014.

PLANET TYPE
Neptune-like
DISCOVERY DATE
2014
MASS
Unknown
PLANET RADIUS
0.371 x Jupiter
ORBITAL RADIUS
1.219 AU
ORBITAL PERIOD
1.9 years
ECCENTRICITY
0.041
DETECTION METHOD
Transit