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Kepler-1801 c is a Neptune-like exoplanet (an ice giant with a thick atmosphere), about 2.9 times the radius of Earth. It has an equilibrium temperature of 371 K (98°C). The planet completes one orbit around its star every 116.6 Earth days. It was discovered in 2023 using the transit method. It orbits the star Kepler-1801, located approximately 839 parsecs (2738 light-years) from Earth.
2023
Discovered
2.91
Earth Radii
371
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,023
Discovery FacilityKepler
Orbital Properties
Orbital Period116.5832 days
Semi-Major Axis0.4572 AU
Eccentricity0
Inclination89.74 deg
Physical Properties
Radius (Jupiter)0.2596 RJ
Radius (Earth)2.91 R⊕
Eq. Temperature371 K
Insolation Flux4.47 S⊕
Planetary Extremes
Where Kepler-1801 c sits on the spectrum of all known exoplanets.
Radius2.91 R⊕
TinyEnormous
Temperature371 K
FrozenInferno
Year Length116.6 days
LightningGlacial
Star Distance0.457 AU
ScorchedFrozen exile
Star System View
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Size Comparison
2.91x Earth's radius (0.26x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)Kepler-1801 c: 116.6 Earth days (0.457 AU)
Host Star: Kepler-1801
Effective Temperature5,738 K
Mass0.936 M☉
Radius0.981 R☉
Size vs Sun1.02x smaller
Metallicity [Fe/H]-0.06
Distance (pc)839.332 pc
Distance (ly)2737.5 light-years
Planets in the Kepler-1801 System
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