CONFIRMED EXOPLANET
·
Sub-Neptune
GJ 229 b
Orbits Host Star: GJ 229
(Type M1.5V)
· Distance: 18.800 Light-Years (5.756 pc)
Planetary Radius
3.970 R⊕
Planetary Mass
14.938 M⊕
Surface Gravity
0.95 g / g⊕
Equilibrium Temp
112K (-161°C / -258°F)
Orbital Period
579.475 days
Discovery Year
2014 (Radial Velocity)
Habitability Assessment
❄️ Cryogenic Regime: At 112 K (-161°C / -258°F), surface volatiles would be frozen in a permanent snowball state without substantial internal geothermal or tidal heating.
Discovery Facility: Multiple Observatories.
Other Worlds in the GJ 229 System (1)
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS