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Kepler-88 d is a Gas Giant exoplanet (a massive planet composed primarily of hydrogen and helium) with a mass of 965.1 Earth masses. The planet completes one orbit around its star every 3.8 Earth years. It was discovered in 2020 using the radial velocity method. It orbits the star KOI-142, located approximately 377 parsecs (1229 light-years) from Earth.
2020
Discovered
965.1
Earth Masses
Discovery Information
Discovery MethodRadial Velocity
Discovery Year2,020
Discovery FacilityW. M. Keck Observatory
Orbital Properties
Orbital Period1,403 days
Semi-Major Axis2.4445 AU
Eccentricity0.41
Inclination89 deg
Physical Properties
Mass (Jupiter)3.0505 MJ
Mass (Earth)965.147 M⊕
Planetary Extremes
Where Kepler-88 d sits on the spectrum of all known exoplanets.
Mass965.1 M⊕
FeatherweightColossus
Year Length3.8 yrs
LightningGlacial
Star Distance2.444 AU
ScorchedFrozen exile
Star System View
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Orbit Comparison
Earth: 365.25 days (1 AU)Kepler-88 d: 3.8 Earth years (2.444 AU)
Host Star: KOI-142
Effective Temperature5,466 K
Mass0.99 M☉
Radius0.897 R☉
Size vs Sun1.11x smaller
Metallicity [Fe/H]0.27
Distance (pc)376.863 pc
Distance (ly)1229.2 light-years
Planets in the KOI-142 System
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