WASP-189 b
A confirmed exoplanet orbiting WASP-189.
Compared with Earth
- Size
- About 18 times Earth's width.
- Mass
- About 632 times Earth's mass.
- Temperature
- About 3,080 °C (5,576 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 2.7 Earth days.
Planet
- Radius
- 18.15 × Earth
- Mass
- 632.5 × Earth
- Density
- 0.622 g/cm³
- Equilibrium temperature
- 3,353 K
- Starlight received
- Unknown
- Orbital period
- 2.724 days
- Average distance from its star
- 0.05053 AU
Star
- Host star
- WASP-189
- Spectral class
- A — white
- Surface temperature
- 8,000 K
- Radius
- 2.36 × Sun
- Mass
- 2.03 × Sun
- Age
- 0.73 billion years
System
- Distance from Earth
- 325.3 light-years (99.73 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2020
- Method
- Transit
- Facility
- CHaracterising ExOPlanets Satellite (CHEOPS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.