CONFIRMED EXOPLANET
·
Terrestrial
★ TEMPERATE HABITABLE ZONE
Proxima Cen d
Orbits Host Star: Proxima Cen
(Type M5.5 V)
· Distance: 4.200 Light-Years (1.301 pc)
Planetary Radius
0.692 R⊕
Planetary Mass
0.260 M⊕
Surface Gravity
0.54 g / g⊕
Equilibrium Temp
282K (9°C)
Orbital Period
5.123 days
Discovery Year
2025 (Radial Velocity)
Habitability Assessment
✓ Classified as a Temperate Habitable Zone Candidate.
With an estimated equilibrium temperature of 282 K (9°C) and a radius of 0.692 R⊕, Proxima Cen d falls within the conservative empirical boundary where a solid rocky surface could sustain liquid surface water under suitable atmospheric greenhouse conditions.
Discovery Facility: La Silla Observatory.
Other Worlds in the Proxima Cen System (1)
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS