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Kepler-37 b is a Rocky exoplanet (a small, dense world with a solid surface), smaller than Earth at 0.31 Earth radii. It has an equilibrium temperature of 718 K (445°C). The planet completes one orbit around its star every 13.4 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
0.8
Earth Masses
0.31
Earth Radii
718
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,013
Discovery FacilityKepler
Orbital Properties
Orbital Period13.367 days
Semi-Major Axis0.1019 AU
Eccentricity0.098
Inclination88.63 deg
Physical Properties
Mass (Jupiter)0.0025 MJ
Mass (Earth)0.79 M⊕
Radius (Jupiter)0.0276 RJ
Radius (Earth)0.3098 R⊕
Density140 g/cm3
Eq. Temperature718 K
Insolation Flux44.5 S⊕
Planetary Extremes
Where Kepler-37 b sits on the spectrum of all known exoplanets.
Mass0.8 M⊕
FeatherweightColossus
Radius0.31 R⊕
TinyEnormous
Temperature718 K
FrozenInferno
Year Length13.4 days
LightningGlacial
Density140.00 g/cm³
FluffyIron-dense
Star Distance0.102 AU
ScorchedFrozen exile
Star System View
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Size Comparison
0.31x Earth's radius
Orbit Comparison
Earth: 365.25 days (1 AU)Kepler-37 b: 13.4 Earth days (0.102 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?
576.2 kg
Your weight (from 70 kg)
8.23g
Lethal
No human could survive. You'd be pinned to the ground.
13.4 Earth days
Year length
Unknown sunrise
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