Temperature
5178 K
5178 to 5251
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Stellar HostProfile
alf Cen B
K0V • 1.35 pc
Records
12
literature rows
Planets
2
system count
References
13
distinct source labels
HIP: HIP 71681TIC: TIC 471011144HD: HD 128621
Approximate color
from effective temperature
Canonical Summary
Adopted host values from one source row
Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.
Stellar source: Turnbull 2015 • System source: TICv8
Mass
0.88 Msun
0.87 to 0.93
Radius
0.88 Rsun
0.86 to 0.88
Age
8 Gyr
8 to 11.36
Luminosity
-0.28 log(Lsun)
-0.30 to -0.28
Distance
1.35 pc
single adopted value
Spectral Type
K0V
Multiple classifications reported
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.88 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
alf Cen B
0.88 R☉
System Layout
Known planets
0 planets linked to this host
No confirmed planets found for this stellar host.
Provenance
Underlying measurements and references
Evidence Summary
Rows
12
Stellar refs
12
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | K2 IV C2+1 ** | 1.35 | Gray et al. 2006 | TICv8 |
| — | 0.91 | — | — | -0.30 | K1 V | 1.35 | Beichman & Sanghi et al. 2025 | TICv8 |
| — | — | — | — | — | — | 1.35 | Pizzolato et al. 2003 | TICv8 |
| — | — | — | — | — | K5 | 1.35 | Cannon & Pickering 1918 | TICv8 |
| — | — | — | — | — | K1 V | 1.35 | Garrison & Beattie 1998 | TICv8 |
| 5251 | — | — | — | — | — | 1.35 | Maldonado et al. 2015 | TICv8 |
| — | — | — | — | — | — | 1.35 | Valenti & Fischer 2005 | TICv8 |
| 5178 | 0.88 | 0.88 | 8 | -0.28 | K0V | 1.35 | Turnbull 2015 | TICv8 |
| — | 0.88 | 0.88 | 11.36 | — | — | 1.35 | Takeda et al. 2007 | TICv8 |
| 5234 | 0.87 | — | — | — | — | 1.35 | Santos et al. 2013 | TICv8 |
| 5214 | 0.93 | 0.86 | — | — | K1 V | 1.35 | Dumusque et al. 2012 | TICv8 |
| — | — | — | — | — | — | 1.35 | Henry et al. 1996 | TICv8 |