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RockyHabitable Zone

Kepler-138 e

Orbiting Kepler-138 | 66.9 parsecs away

2022

Discovered

0.4

Earth Masses

292

Temperature (K)

Discovery Information

Discovery MethodTransit Timing Variations
Discovery Year2,022
Discovery FacilityMultiple Observatories

Orbital Properties

Orbital Period38.23 days
Semi-Major Axis0.1803 AU
Eccentricity0.112
Inclination88.53 deg

Physical Properties

Mass (Jupiter)0.0014 MJ
Mass (Earth)0.43 M⊕
Eq. Temperature292 K
Insolation Flux1.73 S⊕
Planetary Extremes

Where Kepler-138 e sits on the spectrum of all known exoplanets.

Mass0.4 M⊕
FeatherweightColossus
Temperature292 K
FrozenInferno
Year Length38.2 days
LightningGlacial
Star Distance0.180 AU
ScorchedFrozen exile
Star System View
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Orbit Comparison
EarthKepler-138 e
Earth: 365.25 days (1 AU)Kepler-138 e: 38.2 Earth days (0.180 AU)
Host Star: Kepler-138

Effective Temperature3,841 K
Mass0.535 M☉
Radius0.535 R☉
Size vs Sun1.87x smaller
Luminosity0.056 L☉
Luminosity vs Sun17.9x dimmer
Metallicity [Fe/H]-0.18
Distance (pc)66.8624 pc
Distance (ly)218.1 light-years
Other Planets in the Kepler-138 System

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