Kepler-138 e
Orbiting Kepler-138
Kepler-138 e is an exoplanet orbiting the star Kepler-138, discovered in 2022 using the Transit Timing Variations method.
Mass
0.43
Earth masses
Orbital Period
38.2
days
Distance
66.9
parsecs
Equilibrium Temp
292
K
Radius (Earth radii)
Unknown
Mass (Earth masses)
0.43
Measured
Equilibrium Temperature
292 K
Parameter source: Piaulet et al. 2023
Orbital Period
38.230+0.006−0.006days
Semi-Major Axis
0.1803+0.0014−0.0014au
Planet Mass (Earth masses)
0.43+0.21−0.10
Planet Mass (Jupiter masses)
0.0014+0.0007−0.0003
Eccentricity
0.1120+0.0180−0.0240
Epoch of Periastron
2454924.10+0.30−0.20days(BJD)
Argument of Periastron
76.0+10.0−14.0deg
Distance from Earth
66.9 pc (~218 ly)
Spectral Type
Unknown
Temperature
3841 K
Mass (Solar)
0.54 M☉
Radius (Solar)
0.54 R☉
Luminosity
-1.25 log L☉
Planets in System
4
Stars in System
1
Coordinates (RA, Dec)
290.3814°, 43.2931°
Discovery Method
Transit Timing Variations
Discovery Year
2022
Source ID: Kepler-138 e
Kepler-138 e orbits Kepler-138 and was reported in 2022 and was detected with the Transit Timing Variations method.
Published measurements list a mass of 0.43 Earth masses, an orbital period of 38.23 days, and an equilibrium temperature near 292 K.
Catalog data places the system at about 66.9 parsecs from Earth and 4 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open Kepler-138More planets in this system