WASP-133 b

A confirmed exoplanet orbiting WASP-133.

Compared with Earth

Size
About 14 times Earth's width.
Mass
About 369 times Earth's mass.
Temperature
About 1,517 °C (2,762 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 2.2 Earth days.

Planet

Radius
13.56 × Earth
Mass
368.7 × Earth
Density
0.88 g/cm³
Equilibrium temperature
1,790 K
Starlight received
Unknown
Orbital period
2.176 days
Average distance from its star
0.0345 AU

Star

Host star
WASP-133
Spectral class
G — sun-like
Surface temperature
5,700 K
Radius
1.44 × Sun
Mass
1.16 × Sun
Age
6.8 billion years

System

Distance from Earth
1,823 light-years (559.1 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2016
Method
Transit
Facility
SuperWASP-South

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