GJ 9404 b is a Neptune-like exoplanet that orbits an M-type star. Its mass is 11.9 Earths, it takes 13.5 days to complete one orbit of its star, and is 0.0943 AU from its star. Its discovery was announced in 2023.

PLANET TYPE
Neptune-like
DISCOVERY DATE
2023
MASS
11.9 Earths
PLANET RADIUS
0.31 x Jupiter
(estimate)
ORBITAL RADIUS
0.0943 AU
ORBITAL PERIOD
13.5 days
ECCENTRICITY
0.49
DETECTION METHOD