Temperature
3259 K
3195 to 3271
M3.5-4 V โข 1.83 pc
Records
7
literature rows
Planets
4
system count
References
8
distinct source labels
Approximate color
from effective temperature
Canonical Summary
Numeric fields use the median of non-null measurements. Disagreement stays visible through ranges, counts, and provenance.
Temperature
3259 K
3195 to 3271
Mass
0.16 Msun
0.16 to 0.24
Radius
0.19 Rsun
0.18 to 0.19
Luminosity
-2.43 log(Lsun)
-2.45 to -2.42
Distance
1.83 pc
single adopted value
Spectral Type
M3.5-4 V
Multiple classifications reported
Planets
4
Stable across source rows
Scale Comparison
Current adopted radius: 0.19 Rโ โข circles scaled linearly by radius
Sun
1.0 Rโ baseline
Barnard's star
0.19 Rโ
System Layout
4 planets linked to this host
Radial Velocity
Discovery
2025
Period
4.12 days
Radius
โ
Mass
0.34 Mโ
Eq. Temp
400 K
Radial Velocity
Discovery
2024
Period
3.15 days
Radius
โ
Mass
0.37 Mโ
Eq. Temp
400 K
Radial Velocity
Discovery
2025
Period
6.74 days
Radius
โ
Mass
0.19 Mโ
Eq. Temp
340 K
Radial Velocity
Discovery
2025
Period
2.34 days
Radius
โ
Mass
0.26 Mโ
Eq. Temp
483 K
Provenance
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 3259 | 0.16 | 0.19 | โ | -2.42 | โ | 1.83 | TICv8 | TICv8 |
| โ | โ | โ | โ | โ | โ | 1.83 | Wright et al. 2004 | TICv8 |
| โ | โ | โ | โ | โ | M4 | 1.83 | Hawley et al. 1996 | TICv8 |
| 3271 | 0.24 | 0.19 | โ | โ | M3.5V | 1.83 | Turnbull 2015 | TICv8 |
| โ | โ | โ | โ | โ | โ | 1.83 | Duncan et al. 1991 | TICv8 |
| 3195 | 0.16 | 0.18 | โ | -2.45 | M3.5-4 V | 1.83 | González Hernández et al. 2024 | TICv8 |
| โ | โ | โ | โ | โ | โ | 1.83 | Nidever et al. 2002 | TICv8 |