Super-Earth

Kepler-51 e

Orbiting Kepler-51 | 783.8 parsecs away

2024

Discovered

5.4

Earth Masses

Discovery Information

Discovery MethodTransit Timing Variations

Discovery Year2,024

Discovery FacilityMultiple Observatories

Orbital Properties

Orbital Period264.284 days

Eccentricity0.02

Physical Properties

Mass (Jupiter)0.017 MJ

Mass (Earth)5.4 M⊕

Planetary Extremes

Where Kepler-51 e sits on the spectrum of all known exoplanets.

Mass5.4 M⊕

FeatherweightColossus

Year Length264.3 days

LightningGlacial

Host Star: Kepler-51

Effective Temperature6,018 K

Mass1.04 M☉

Radius0.94 R☉

Size vs Sun1.06x smaller

Distance (pc)783.831 pc

Distance (ly)2556.5 light-years

Other Planets in the Kepler-51 System

Kepler-51 b45.2 d Kepler-51 c85.3 d Kepler-51 d130.2 d

View on NASA Archive Compare with Other Planets

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Related Research

AtmospheresNov 4, 2025

Quantifying the Impact of Starspot-Crossing Events on Retrieved Parameters from Transit Lightcurves

C. A. Murray, Z. Berta-Thompson

Starspot-crossing events (SCEs) in exoplanet transit lightcurves are becoming increasingly common as we focus on cooler host stars and observe higher precision photometric and spectroscopic lightcurve...

DetectionOct 2, 2024

A Fourth Planet in the Kepler-51 System Revealed by Transit Timing Variations

Kento Masuda, Jessica E. Libby-Roberts, John H. Livingston et al.

Kepler-51 is a $\lesssim 1\,\mathrm{Gyr}$-old Sun-like star hosting three transiting planets with radii $\approx 6$-$9\,R_\oplus$ and orbital periods $\approx 45$-$130\,\mathrm{days}$. Transit timing ...

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