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Kepler-311 c is a Super-Earth exoplanet (a planet larger than Earth but smaller than Neptune), about 1.4 times the radius of Earth. The planet completes one orbit around its star every 19.7 Earth days. It was discovered in 2014 using the transit method. It orbits the star Kepler-311, located approximately 779 parsecs (2540 light-years) from Earth.
2014
Discovered
1.43
Earth Radii
Discovery Information
Discovery MethodTransit
Discovery Year2,014
Discovery FacilityKepler
Orbital Properties
Orbital Period19.7383 days
Semi-Major Axis0.145 AU
Physical Properties
Radius (Jupiter)0.128 RJ
Radius (Earth)1.43 R⊕
Planetary Extremes
Where Kepler-311 c sits on the spectrum of all known exoplanets.
Radius1.43 R⊕
TinyEnormous
Year Length19.7 days
LightningGlacial
Star Distance0.145 AU
ScorchedFrozen exile
Star System View
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Size Comparison
1.43x Earth's radius (0.13x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)Kepler-311 c: 19.7 Earth days (0.145 AU)
Host Star: Kepler-311
Effective Temperature5,903 K
Mass0.974 M☉
Radius1.156 R☉
Size vs Sun1.16x larger
Metallicity [Fe/H]-0.1
Distance (pc)778.654 pc
Distance (ly)2539.6 light-years
Planets in the Kepler-311 System
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