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L 98-59 c is a Super-Earth exoplanet (a planet larger than Earth but smaller than Neptune), about 1.3 times the radius of Earth. It has an equilibrium temperature of 526 K (253°C). The planet completes one orbit around its star every 3.7 Earth days. It was discovered in 2019 using the transit method. It orbits the M-type star L 98-59, located approximately 11 parsecs (35 light-years) from Earth.
2019
Discovered
2.0
Earth Masses
1.33
Earth Radii
526
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,019
Discovery FacilityTransiting Exoplanet Survey Satellite (TESS)
Orbital Properties
Orbital Period3.6907 days
Semi-Major Axis0.0309 AU
Eccentricity0.002
Inclination88.88 deg
Physical Properties
Mass (Jupiter)0.0063 MJ
Mass (Earth)2 M⊕
Radius (Jupiter)0.1186 RJ
Radius (Earth)1.329 R⊕
Density4.7 g/cm3
Eq. Temperature526 K
Insolation Flux12.7 S⊕
Planetary Extremes
Where L 98-59 c sits on the spectrum of all known exoplanets.
Mass2.0 M⊕
FeatherweightColossus
Radius1.33 R⊕
TinyEnormous
Temperature526 K
FrozenInferno
Year Length3.7 days
LightningGlacial
Density4.70 g/cm³
FluffyIron-dense
Star Distance0.031 AU
ScorchedFrozen exile
Star System View
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Size Comparison
1.33x Earth's radius (0.12x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)L 98-59 c: 3.7 Earth days (0.031 AU)
Host Star: L 98-59
Spectral TypeM3 V
Effective Temperature3,415 K
Mass0.2923 M☉
Radius0.3155 R☉
Size vs Sun3.17x smaller
Luminosity0.0122 L☉
Luminosity vs Sun82.0x dimmer
Metallicity [Fe/H]-0.46
Distance (pc)10.6194 pc
Distance (ly)34.6 light-years
What If You Lived Here?
79.3 kg
Your weight (from 70 kg)
1.13g
Earth-like
Feels just like home — comfortably familiar.
3.7 Earth days
Year length
Red sunrise
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