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WASP-33 b is a Super-Jupiter exoplanet (an exceptionally massive gas giant), about 17.9 times the radius of Earth. Its scorching equilibrium temperature of 2782 K (2509°C) makes it far too hot for liquid water. The planet completes one orbit around its star every 29 hours. It was discovered in 2010 using the transit method. It orbits the star WASP-33, located approximately 122 parsecs (398 light-years) from Earth.
2010
Discovered
665.2
Earth Masses
17.86
Earth Radii
2782
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,010
Discovery FacilitySuperWASP
Orbital Properties
Orbital Period1.2199 days
Semi-Major Axis0.0239 AU
Inclination86.63 deg
Physical Properties
Mass (Jupiter)2.093 MJ
Mass (Earth)665.2182 M⊕
Radius (Jupiter)1.593 RJ
Radius (Earth)17.8559 R⊕
Density0.689 g/cm3
Eq. Temperature2,781.7 K
Planetary Extremes
Where WASP-33 b sits on the spectrum of all known exoplanets.
Mass665.2 M⊕
FeatherweightColossus
Radius17.86 R⊕
TinyEnormous
Temperature2782 K
FrozenInferno
Year Length1.2 days
LightningGlacial
Density0.69 g/cm³
FluffyIron-dense
Star Distance0.024 AU
ScorchedFrozen exile
Star System View
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Size Comparison
17.86x Earth's radius (1.59x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)WASP-33 b: 29 hours (0.024 AU)
Host Star: WASP-33
Effective Temperature7,430 K
Mass1.495 M☉
Radius1.444 R☉
Size vs Sun1.44x larger
Distance (pc)121.944 pc
Distance (ly)397.7 light-years
Planets in the WASP-33 System
What If You Lived Here?
146.0 kg
Your weight (from 70 kg)
2.09g
Crushing
Standing upright is a struggle. Your body feels like lead.
29 hours
Year length
Unknown sunrise
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