GJ 436 b is a Neptune-like exoplanet that orbits a M-type star. Its mass is 22.1 Earths, it takes 2.6 days to complete one orbit of its star, and is 0.0291 AU from its star. Its discovery was announced in 2004.

PLANET TYPE
Neptune-like
DISCOVERY DATE
2004
MASS
22.1 Earths
PLANET RADIUS
0.372 x Jupiter
ORBITAL RADIUS
0.0291 AU
ORBITAL PERIOD
2.6 days
ECCENTRICITY
0.14
DETECTION METHOD