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Kepler-1181 c is a Super-Earth exoplanet (a planet larger than Earth but smaller than Neptune), about 1.8 times the radius of Earth. Its scorching equilibrium temperature of 1124 K (851°C) makes it far too hot for liquid water. Despite its name, Super-Earths are not necessarily habitable; the term refers only to size. The planet completes one orbit around its star every 8.9 Earth days. It was discovered in 2023 using the transit method. It orbits the star Kepler-1181, located approximately 938 parsecs (3061 light-years) from Earth.
2023
Discovered
1.83
Earth Radii
1124
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,023
Discovery FacilityKepler
Orbital Properties
Orbital Period8.9348 days
Semi-Major Axis0.0928 AU
Eccentricity0
Inclination86.05 deg
Physical Properties
Radius (Jupiter)0.1633 RJ
Radius (Earth)1.83 R⊕
Eq. Temperature1,124 K
Insolation Flux377.25 S⊕
Planetary Extremes
Where Kepler-1181 c sits on the spectrum of all known exoplanets.
Radius1.83 R⊕
TinyEnormous
Temperature1124 K
FrozenInferno
Year Length8.9 days
LightningGlacial
Star Distance0.093 AU
ScorchedFrozen exile
Star System View
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Size Comparison
1.83x Earth's radius (0.16x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)Kepler-1181 c: 8.9 Earth days (0.093 AU)
Host Star: Kepler-1181
Effective Temperature6,688 K
Mass1.336 M☉
Radius1.347 R☉
Size vs Sun1.35x larger
Metallicity [Fe/H]0.07
Distance (pc)938.417 pc
Distance (ly)3060.7 light-years
Planets in the Kepler-1181 System
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