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Kepler-37 c is a Rocky exoplanet (a small, dense world with a solid surface), smaller than Earth at 0.76 Earth radii. It has an equilibrium temperature of 615 K (342°C). The planet completes one orbit around its star every 21.3 Earth days. It was discovered in 2013 using the transit method. It orbits the star Kepler-37, located approximately 64 parsecs (208 light-years) from Earth.
2013
Discovered
1.3
Earth Masses
0.76
Earth Radii
615
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,013
Discovery FacilityKepler
Orbital Properties
Orbital Period21.3018 days
Semi-Major Axis0.139 AU
Eccentricity0.099
Inclination89.07 deg
Physical Properties
Mass (Jupiter)0.0041 MJ
Mass (Earth)1.3 M⊕
Radius (Jupiter)0.0674 RJ
Radius (Earth)0.755 R⊕
Density15 g/cm3
Eq. Temperature615 K
Insolation Flux23.9 S⊕
Planetary Extremes
Where Kepler-37 c sits on the spectrum of all known exoplanets.
Mass1.3 M⊕
FeatherweightColossus
Radius0.76 R⊕
TinyEnormous
Temperature615 K
FrozenInferno
Year Length21.3 days
LightningGlacial
Density15.00 g/cm³
FluffyIron-dense
Star Distance0.139 AU
ScorchedFrozen exile
Star System View
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Size Comparison
0.76x Earth's radius
Orbit Comparison
Earth: 365.25 days (1 AU)Kepler-37 c: 21.3 Earth days (0.139 AU)
Host Star: Kepler-37
Mass0.8 M☉
Radius0.772 R☉
Size vs Sun1.30x smaller
Distance (pc)63.9207 pc
Distance (ly)208.5 light-years
What If You Lived Here?
159.6 kg
Your weight (from 70 kg)
2.28g
Crushing
Standing upright is a struggle. Your body feels like lead.
21.3 Earth days
Year length
Unknown sunrise
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