Planet Proxima Centauri b

Detailed information about planet Proxima Centauri b and its parameters.

Planet

Name
Proxima Centauri b
Planet Status
Confirmed
Discovered in
2016
Update
2024-06-16
Mass
0.00337 ( ± 0.00019 ) MJ
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Detection Method
Radial Velocity
Mass Meas. Method
Radial Velocity
Radius Meas. Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names
alpha Cen C b, GL 551 C b, HIP 70890 b
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

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Star

Name
Proxima Centauri
Distance
Spectral type
M5.5V
Apparent magnitude V
11.13
Mass
Age
Effective temperature
Radius
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000
14:29:42.9
Dec2000
-62:40:46.0
Alternate Names
alpha Cen C, GL 551, HIP 70890

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