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Neptune-like

K2-123 b

Orbiting K2-123 | 161.6 parsecs away

2017

Discovered

2.76

Earth Radii

338

Temperature (K)

Discovery Information

Discovery MethodTransit
Discovery Year2,017
Discovery FacilityK2

Orbital Properties

Orbital Period30.9515 days
Semi-Major Axis0.1649 AU

Physical Properties

Radius (Jupiter)0.2462 RJ
Radius (Earth)2.76 R⊕
Eq. Temperature338 K
Planetary Extremes

Where K2-123 b sits on the spectrum of all known exoplanets.

Radius2.76 R⊕
TinyEnormous
Temperature338 K
FrozenInferno
Year Length31.0 days
LightningGlacial
Star Distance0.165 AU
ScorchedFrozen exile
Star System View
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Size Comparison
EarthK2-123 bJupiter

2.76x Earth's radius (0.25x Jupiter)

Orbit Comparison
EarthK2-123 b
Earth: 365.25 days (1 AU)K2-123 b: 31.0 Earth days (0.165 AU)
Host Star: K2-123

Effective Temperature4,035 K
Mass0.62 M☉
Radius0.59 R☉
Size vs Sun1.69x smaller
Metallicity [Fe/H]0.03
Distance (pc)161.555 pc
Distance (ly)526.9 light-years

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