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K2-275 b is a Neptune-like exoplanet (an ice giant with a thick atmosphere), about 2.3 times the radius of Earth. Its scorching equilibrium temperature of 1166 K (893°C) makes it far too hot for liquid water. The planet completes one orbit around its star every 3.3 Earth days. It was discovered in 2018 using the transit method. It orbits the star K2-275, located approximately 123 parsecs (403 light-years) from Earth.
2018
Discovered
2.34
Earth Radii
1166
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,018
Discovery FacilityK2
Orbital Properties
Orbital Period3.281 days
Semi-Major Axis0.0277 AU
Physical Properties
Radius (Jupiter)0.2088 RJ
Radius (Earth)2.34 R⊕
Eq. Temperature1,166 K
Planetary Extremes
Where K2-275 b sits on the spectrum of all known exoplanets.
Radius2.34 R⊕
TinyEnormous
Temperature1166 K
FrozenInferno
Year Length3.3 days
LightningGlacial
Star Distance0.028 AU
ScorchedFrozen exile
Star System View
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Size Comparison
2.34x Earth's radius (0.21x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)K2-275 b: 3.3 Earth days (0.028 AU)
Host Star: K2-275
Effective Temperature4,841 K
Mass0.77 M☉
Radius0.69 R☉
Size vs Sun1.45x smaller
Metallicity [Fe/H]-0.06
Distance (pc)123.438 pc
Distance (ly)402.6 light-years
Planets in the K2-275 System
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