WASP-31 b

A confirmed exoplanet orbiting WASP-31.

Compared with Earth

Size
About 17 times Earth's width.
Mass
About 152 times Earth's mass.
Year
A year here lasts about 3.4 Earth days.

Planet

Radius
17.36 × Earth
Mass
151.9 × Earth
Density
0.172 g/cm³
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
3.406 days
Average distance from its star
0.04659 AU

Star

Host star
WASP-31
Spectral class
F — yellow-white
Surface temperature
6,302 K
Radius
1.252 × Sun
Mass
1.163 × Sun
Age
Unknown

System

Distance from Earth
1,252 light-years (383.8 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2010
Method
Transit
Facility
SuperWASP

Data from the NASA Exoplanet Archive, synced October 14, 2026.