WASP-166 b
A confirmed exoplanet orbiting WASP-166.
Compared with Earth
- Size
- About 7.1 times Earth's width.
- Mass
- About 32 times Earth's mass.
- Temperature
- About 997 °C (1,826 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 440 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 5.4 Earth days.
Planet
- Radius
- 7.062 × Earth
- Mass
- 32.1 × Earth
- Density
- 0.54 g/cm³
- Equilibrium temperature
- 1,270 K
- Starlight received
- 440 × Earth
- Orbital period
- 5.444 days
- Average distance from its star
- 0.0641 AU
Star
- Host star
- WASP-166
- Spectral class
- F — yellow-white
- Surface temperature
- 6,050 K
- Radius
- 1.22 × Sun
- Mass
- 1.19 × Sun
- Age
- 2.1 billion years
System
- Distance from Earth
- 372.4 light-years (114.2 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2019
- Method
- Transit
- Facility
- WASP-South
Data from the NASA Exoplanet Archive, synced October 14, 2026.