HD 90156 b is a Neptune-like exoplanet that orbits a G-type star. Its mass is 17.98 Earths, it takes 49.8 days to complete one orbit of its star, and is 0.25 AU from its star. Its discovery was announced in 2009.

PLANET TYPE
Neptune-like
DISCOVERY DATE
2009
MASS
17.98 Earths
PLANET RADIUS
0.395 x Jupiter
(estimate)
ORBITAL RADIUS
0.25 AU
ORBITAL PERIOD
49.8 days
ECCENTRICITY
0.31
DETECTION METHOD
Radial Velocity