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Super-Earth

K2-141 b

Orbiting K2-141 | 61.9 parsecs away

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K2-141 b is a Super-Earth exoplanet (a planet larger than Earth but smaller than Neptune), about 1.5 times the radius of Earth. Its scorching equilibrium temperature of 2103 K (1830°C) makes it far too hot for liquid water. Despite its name, Super-Earths are not necessarily habitable; the term refers only to size. The planet completes one orbit around its star every 6.7 hours. It was discovered in 2018 using the transit method. It orbits the star K2-141, located approximately 62 parsecs (202 light-years) from Earth.

2018

Discovered

5.0

Earth Masses

1.51

Earth Radii

2103

Temperature (K)

Discovery Information

Discovery MethodTransit
Discovery Year2,018
Discovery FacilityK2

Orbital Properties

Orbital Period0.2803 days
Semi-Major Axis0.0075 AU
Eccentricity0
Inclination86.3 deg

Physical Properties

Mass (Jupiter)0.0156 MJ
Mass (Earth)4.97 M⊕
Radius (Jupiter)0.1347 RJ
Radius (Earth)1.51 R⊕
Density7.93 g/cm3
Eq. Temperature2,103 K
Insolation Flux3,260 S⊕
Planetary Extremes

Where K2-141 b sits on the spectrum of all known exoplanets.

Mass5.0 M⊕
FeatherweightColossus
Radius1.51 R⊕
TinyEnormous
Temperature2103 K
FrozenInferno
Year Length6.7 hrs
LightningGlacial
Density7.93 g/cm³
FluffyIron-dense
Star Distance7.5e-3 AU
ScorchedFrozen exile
Star System View
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Size Comparison
EarthK2-141 bJupiter

1.51x Earth's radius (0.13x Jupiter)

Orbit Comparison
EarthK2-141 b
Earth: 365.25 days (1 AU)K2-141 b: 6.7 hours (0.007 AU)
Host Star: K2-141

Effective Temperature4,570 K
Mass0.708 M☉
Radius0.681 R☉
Size vs Sun1.47x smaller
Metallicity [Fe/H]0
Distance (pc)61.8736 pc
Distance (ly)201.8 light-years

What If You Lived Here?

152.6 kg

Your weight (from 70 kg)

2.18g

Crushing

Standing upright is a struggle. Your body feels like lead.

6.7 hours

Year length

Unknown sunrise

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