:INFO
Gas giant around WASP-189
It is 1.62 times Jupiter's radius, closest in size to Jupiter, and 632.5 times Earth's mass, at 0.62 g/cm3, less dense than Earth. A year there lasts 2.72 days, on an orbit 8 times closer to its star than Mercury is to the Sun. Its equilibrium temperature is 3353 K, hotter than the surface of many stars. The host star WASP-189 runs at 8000 K with 2.03 times the Sun's mass.

:COUNTER
3353 K: hot enough to vaporise rock on the dayside

:STATS
[icon:TARGET] Radius | 18.15 Earth radii
[icon:CHART] Mass | 632.5 Earth masses
[icon:FIRE] Equilibrium temperature | 3353 K (measured)
[icon:CLOCK] One year | 2.72 days
[icon:BOLT] Orbit radius | 0.0505 AU
[icon:STAR] Host star | WASP-189 at 8000 K
[icon:USERS] Distance | 325 light-years
[icon:TRENDING_DOWN] Starlight blocked | 0.496% at each transit

:PATH
What a crossing measures
Block a known fraction of a known star and you have measured a width.

:NOTE
The size came from a crossing, the mass did not. That pairing is uncommon and it is what lets anyone say whether this is rock or gas.

:NOTE
Found by CHaracterising ExOPlanets Satellite (CHEOPS) in 2020.

:LINK
https://exoplanetarchive.ipac.caltech.edu/overview/WASP-189%20b
NASA Exoplanet Archive: source data, including the values not used here