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Kepler-554 b is a Neptune-like exoplanet (an ice giant with a thick atmosphere), about 4.3 times the radius of Earth. The planet completes one orbit around its star every 46 hours. It was discovered in 2016 using the transit method. It orbits the star Kepler-554, located approximately 691 parsecs (2252 light-years) from Earth.
2016
Discovered
4.29
Earth Radii
Discovery Information
Discovery MethodTransit
Discovery Year2,016
Discovery FacilityKepler
Orbital Properties
Orbital Period1.9022 days
Semi-Major Axis0.0293 AU
Physical Properties
Radius (Jupiter)0.3827 RJ
Radius (Earth)4.29 R⊕
Planetary Extremes
Where Kepler-554 b sits on the spectrum of all known exoplanets.
Radius4.29 R⊕
TinyEnormous
Year Length1.9 days
LightningGlacial
Star Distance0.029 AU
ScorchedFrozen exile
Star System View
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Size Comparison
4.29x Earth's radius (0.38x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)Kepler-554 b: 46 hours (0.029 AU)
Host Star: Kepler-554
Effective Temperature5,447 K
Mass0.93 M☉
Radius0.92 R☉
Size vs Sun1.09x smaller
Metallicity [Fe/H]0.14
Distance (pc)690.525 pc
Distance (ly)2252.2 light-years
Planets in the Kepler-554 System
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