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Kepler-244 d is a Neptune-like exoplanet (an ice giant with a thick atmosphere), about 2.3 times the radius of Earth. The planet completes one orbit around its star every 20.1 Earth days. It was discovered in 2014 using the transit method. It orbits the star Kepler-244, located approximately 1036 parsecs (3381 light-years) from Earth.
2014
Discovered
2.31
Earth Radii
Discovery Information
Discovery MethodTransit
Discovery Year2,014
Discovery FacilityKepler
Orbital Properties
Orbital Period20.0504 days
Semi-Major Axis0.14 AU
Physical Properties
Radius (Jupiter)0.206 RJ
Radius (Earth)2.31 R⊕
Planetary Extremes
Where Kepler-244 d sits on the spectrum of all known exoplanets.
Radius2.31 R⊕
TinyEnormous
Year Length20.1 days
LightningGlacial
Star Distance0.140 AU
ScorchedFrozen exile
Star System View
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Size Comparison
2.31x Earth's radius (0.21x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)Kepler-244 d: 20.1 Earth days (0.140 AU)
Host Star: Kepler-244
Effective Temperature5,554 K
Radius0.803 R☉
Size vs Sun1.25x smaller
Distance (pc)1,036.49 pc
Distance (ly)3380.6 light-years
Planets in the Kepler-244 System
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