CONFIRMED EXOPLANET · Gas Giant

HD 187123 c

Orbits Host Star: HD 187123 (Type G3 V) · Distance: 149.900 Light-Years (45.955 pc)

Planetary Radius

13.200 R⊕

Planetary Mass

912.168 M⊕

Surface Gravity

5.24 g / g⊕

Equilibrium Temp

135K (-138°C / -216°F)

Orbital Period

3810 days

Discovery Year

2008 (Radial Velocity)

Habitability Assessment

❄️ Cryogenic Regime: At 135 K (-138°C / -216°F), surface volatiles would be frozen in a permanent snowball state without substantial internal geothermal or tidal heating.

Discovery Facility: W. M. Keck Observatory.

Other Worlds in the HD 187123 System (1)

HD 187123 b

Gas Giant · 3.1d

NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS

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