CONFIRMED EXOPLANET
·
Gas Giant
HD 128311 b
Orbits Host Star: HD 128311
(Type K0)
· Distance: 53.300 Light-Years (16.329 pc)
Planetary Radius
13.500 R⊕
Planetary Mass
562.241 M⊕
Surface Gravity
3.08 g / g⊕
Equilibrium Temp
200K (-73°C / -99°F)
Orbital Period
453.019 days
Discovery Year
2002 (Radial Velocity)
Habitability Assessment
☁️ Gaseous Envelope: With a radius exceeding 2.2 Earth radii, this world is modeled as a volatile-rich sub-Neptune or Jovian gas giant without a defined solid surface boundary.
Discovery Facility: W. M. Keck Observatory.
Other Worlds in the HD 128311 System (1)
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS