WASP-4 b
A confirmed exoplanet orbiting WASP-4.
Compared with Earth
- Size
- About 15 times Earth's width.
- Mass
- About 381 times Earth's mass.
- Temperature
- About 1,380 °C (2,516 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 1.3 Earth days.
Planet
- Radius
- 15.12 × Earth
- Mass
- 381.4 × Earth
- Density
- 0.6472 g/cm³
- Equilibrium temperature
- 1,653 K
- Starlight received
- Unknown
- Orbital period
- 1.338 days
- Average distance from its star
- 0.02261 AU
Star
- Host star
- WASP-4
- Spectral class
- Unknown
- Surface temperature
- Unknown
- Radius
- 0.912 × Sun
- Mass
- 0.899 × Sun
- Age
- Unknown
System
- Distance from Earth
- 871.5 light-years (267.2 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2007
- Method
- Transit
- Facility
- SuperWASP
Data from the NASA Exoplanet Archive, synced October 14, 2026.