WASP-55 b
A confirmed exoplanet orbiting WASP-55.
Compared with Earth
- Size
- About 15 times Earth's width.
- Mass
- About 186 times Earth's mass.
- Temperature
- About 1,069 °C (1,956 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 504 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 4.5 Earth days.
Planet
- Radius
- 14.73 × Earth
- Mass
- 186.2 × Earth
- Density
- 0.3422 g/cm³
- Equilibrium temperature
- 1,342 K
- Starlight received
- 504 × Earth
- Orbital period
- 4.466 days
- Average distance from its star
- Unknown
Star
- Host star
- WASP-55
- Spectral class
- F — yellow-white
- Surface temperature
- 6,096 K
- Radius
- 1.09 × Sun
- Mass
- 1.071 × Sun
- Age
- 3.05 billion years
System
- Distance from Earth
- 970.2 light-years (297.5 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2012
- Method
- Transit
- Facility
- SuperWASP
Data from the NASA Exoplanet Archive, synced October 14, 2026.