Proxima Cen b
Orbiting Proxima Cen
Proxima Cen b is an exoplanet orbiting the star Proxima Cen, discovered in 2016 using the Radial Velocity method.
Orbital Period
11.2
days
Distance
1.3
parsecs
Equilibrium Temp
218
K
Radius (Earth radii)
Unknown
Mass (Earth masses)
Unknown
Equilibrium Temperature
218 K
Orbital Period
11.18 days
Distance from Earth
1.3 pc (~4 ly)
Spectral Type
M5.5 V
Temperature
2900 K
Mass (Solar)
0.12 M☉
Radius (Solar)
0.14 R☉
Luminosity
-2.82 log L☉
Planets in System
2
Stars in System
3
Coordinates (RA, Dec)
217.3935°, -62.6762°
Discovery Method
Radial Velocity
Discovery Year
2016
Source ID: Proxima Cen b
Proxima Cen b orbits Proxima Cen and was reported in 2016 and was detected with the Radial Velocity method.
Published measurements list an orbital period of 11.18 days and an equilibrium temperature near 218 K.
Catalog data places the system at about 1.3 parsecs from Earth, a host star classified as M5.5 V, and 2 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open Proxima CenMore planets in this system