Planet alf Cen Ab

Detailed information about planet alf Cen Ab and its parameters.

Planet

Name
alf Cen Ab
Planet Status
Candidate
Discovered in
2021
Publication
Status
Published in a refereed paper
Update
2025-08-07
Mass
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
Angular distance
ω
Tperi
Radius
1.05 ( ± 0.05 ) RJ
Inclination
Detection Method
Imaging
Mass Meas. Method
Theoretical
Radius Meas. Method
Theoretical
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
225.0 K
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

07 Aug 2025:
An alternate semi-major axis is 2.1 AU (Beichman et al. 2025)

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Star

Name
alf Cen A
Distance
1.3319 ( ± 0.0007 ) pc
Spectral type
G2V
Apparent magnitude V
0.01
Apparent magnitude I
Apparent magnitude J
Apparent magnitude H
Apparent magnitude K
Mass
Age
Effective temperature
5804.0 ( ± 13.0 ) K
Radius
Metallicity [Fe/H]
0.2 ( ± 0.01 )
Detected Disc
Magnetic Field
RA2000
14:39:36.0
Dec2000
-60:50:02.0
Alternate Names

No remarks

No link