HD 40307 d
HD 40307 d is a Neptune-like exoplanet that orbits a K-type star. Its mass is 9.5 Earths, it takes 20.4 days to complete one orbit of its star, and is 0.1321 AU from its star. Its discovery was announced in 2009.
Planet Radius:
0.272 x Jupiter (estimate)
Planet Type:
- Neptune-like
Discovery Method:
- Radial Velocity
Planet Mass:
9.5 Earths
Discovery Date:
2009
Orbital Radius:
0.1321 AU
Orbital Period:
20.4 days
Eccentricity:
0.07
