Back to Catalog
WASP-189 b is a Super-Jupiter exoplanet (an exceptionally massive gas giant), about 18.1 times the radius of Earth. Its scorching equilibrium temperature of 3353 K (3080°C) makes it far too hot for liquid water. The planet completes one orbit around its star every 2.7 Earth days. It was discovered in 2020 using the transit method. It orbits the star WASP-189, located approximately 100 parsecs (325 light-years) from Earth.
2020
Discovered
632.5
Earth Masses
18.15
Earth Radii
3353
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,020
Discovery FacilityCHaracterising ExOPlanets Satellite (CHEOPS)
Orbital Properties
Orbital Period2.724 days
Semi-Major Axis0.0505 AU
Eccentricity0
Inclination84.03 deg
Physical Properties
Mass (Jupiter)1.99 MJ
Mass (Earth)632.4785 M⊕
Radius (Jupiter)1.619 RJ
Radius (Earth)18.1473 R⊕
Density0.622 g/cm3
Eq. Temperature3,353 K
Planetary Extremes
Where WASP-189 b sits on the spectrum of all known exoplanets.
Mass632.5 M⊕
FeatherweightColossus
Radius18.15 R⊕
TinyEnormous
Temperature3353 K
FrozenInferno
Year Length2.7 days
LightningGlacial
Density0.62 g/cm³
FluffyIron-dense
Star Distance0.051 AU
ScorchedFrozen exile
Star System View
Loading 3D view...
Size Comparison
18.15x Earth's radius (1.62x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)WASP-189 b: 2.7 Earth days (0.051 AU)
Host Star: WASP-189
Effective Temperature8,000 K
Mass2.03 M☉
Radius2.36 R☉
Size vs Sun2.36x larger
Metallicity [Fe/H]0.29
Distance (pc)99.731 pc
Distance (ly)325.3 light-years
Planets in the WASP-189 System
What If You Lived Here?
134.4 kg
Your weight (from 70 kg)
1.92g
Heavy
Every step takes effort. Climbing stairs is exhausting.
2.7 Earth days
Year length
Unknown sunrise
Test Your Knowledge
Related Research
Loading papers...