artist rendition
Artist's concept

Kepler-37 d is a Neptune-like exoplanet that orbits a G-type star. Its mass is 12.2 Earth and it takes 39.8 days to complete one orbit of its star. Its discovery was announced in 2013.

PLANET TYPE
Neptune-like
DISCOVERY DATE
2013
MASS
12.2 Earth
PLANET RADIUS
1.94 x Earth
ORBITAL RADIUS
Unknown
ORBITAL PERIOD
39.8 days
ECCENTRICITY
Unknown
DETECTION METHOD
Transit