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2025
Discovered
0.3
Earth Masses
282
Temperature (K)
Discovery Information
Discovery MethodRadial Velocity
Discovery Year2,025
Discovery FacilityLa Silla Observatory
Orbital Properties
Orbital Period5.1234 days
Semi-Major Axis0.0288 AU
Eccentricity0
Physical Properties
Mass (Jupiter)0.0008 MJ
Mass (Earth)0.26 M⊕
Eq. Temperature282 K
Insolation Flux1.814 S⊕
Planetary Extremes
Where Proxima Cen d sits on the spectrum of all known exoplanets.
Mass0.3 M⊕
FeatherweightColossus
Temperature282 K
FrozenInferno
Year Length5.1 days
LightningGlacial
Star Distance0.029 AU
ScorchedFrozen exile
Orbit Comparison
Earth: 365.25 days (1 AU)Proxima Cen d: 5.1 Earth days (0.029 AU)
Host Star: Proxima Cen
Spectral TypeM5.5 V
Effective Temperature2,900 K
Mass0.1221 M☉
Radius0.141 R☉
Size vs Sun7.09x smaller
Luminosity0.0015 L☉
Luminosity vs Sun662.2x dimmer
Distance (pc)1.3012 pc
Distance (ly)4.2 light-years
Star System View
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