CONFIRMED EXOPLANET · Gas Giant

HD 217107 b

Orbits Host Star: HD 217107 (Type G) · Distance: 65.400 Light-Years (20.062 pc)

Planetary Radius

13.600 R⊕

Planetary Mass

459.580 M⊕

Surface Gravity

2.48 g / g⊕

Equilibrium Temp

1106K (+833°C / +1531°F)

Orbital Period

7.127 days

Discovery Year

1998 (Radial Velocity)

Habitability Assessment

⚠️ Thermal Exclusions: High equilibrium temperature (1106 K · +833°C / +1531°F) places this world well interior to the runaway greenhouse threshold.

Discovery Facility: Lick Observatory.

Other Worlds in the HD 217107 System (1)

HD 217107 c

Gas Giant · 5138.7d

NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS

Inspect Raw NASA Archive Record ↗