Planet Proxima Centauri c

Detailed information about planet Proxima Centauri c and its parameters.

Planet

Name
Proxima Centauri c
Planet Status
Candidate
Discovered in
2019
Publication
Status
—
Update
2025-12-10
Mass
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
Angular distance
—
ω
—
Tperi
Radius
—
Inclination
Detection Method
Radial Velocity, Astrometry
Mass Meas. Method
Astrometry
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
—
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

29 Jul 2022
"The LBL analysis of the Proxima Centauri HARPS post-upgrade data alone easily recovers the Proxima b signal and also provides a 2-σ detection of the recently confirmed 5-day Proxima d planet, but argues against the presence of the candidate Proxima c with a period of 1900 days." (Artigau et al. 2022)

Star

Name
Proxima Centauri
Distance
Spectral type
M5.5V
Apparent magnitude V
11.13
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
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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