Temperature
4045 K
4006 to 4222.1
M0.0 • 83.64 pc
Records
9
literature rows
Planets
2
system count
References
9
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
4045 K
4006 to 4222.1
Mass
0.64 Msun
0.52 to 0.68
Radius
0.59 Rsun
0.46 to 0.65
Age
1 Gyr
single adopted value
Luminosity
-1.01 log(Lsun)
-1.03 to -0.98
Distance
83.64 pc
single adopted value
Spectral Type
M0.0
Consistent across records
Planets
2
Stable across source rows
Scale Comparison
Current adopted radius: 0.59 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
K2-21
0.59 R☉
System Layout
2 planets linked to this host
Provenance
Evidence Summary
Rows
9
Stellar refs
8
System refs
1
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4213.5 | — | 0.58 | — | -1.03 | — | 83.64 | Gaia DR2 | TICv8 |
| — | — | 0.58 | — | — | — | 83.64 | Kruse et al. 2019 | TICv8 |
| — | — | 0.58 | — | — | — | 83.64 | Kruse et al. 2019 | TICv8 |
| 4222.1 | 0.68 | 0.65 | — | — | — | 83.64 | Dressing et al. 2017 | TICv8 |
| — | — | — | — | — | — | 83.64 | Barros et al. 2016 | TICv8 |
| 4043 | 0.64 | 0.60 | 1 | — | M0.0 | 83.64 | Petigura et al. 2015 | TICv8 |
| 4047 | 0.63 | 0.65 | — | -0.98 | — | 83.64 | TICv8 | TICv8 |
| 4006 | 0.52 | 0.46 | — | — | — | 83.64 | Crossfield et al. 2016 | TICv8 |
| 4024 | — | 0.60 | — | — | — | 83.64 | Vanderburg et al. 2016 | TICv8 |