Temperature
4259 K
4137 to 4329.9
K2 II • 1539.7 pc
Records
5
literature rows
Planets
2
system count
References
6
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
4259 K
4137 to 4329.9
Mass
2.80 Msun
1.06 to 10.83
Radius
47.52 Rsun
43.02 to 71.02
Luminosity
2.97 log(Lsun)
2.77 to 3.17
Distance
1539.7 pc
single adopted value
Spectral Type
K2 II
Consistent across records
Planets
2
Stable across source rows
Scale Comparison
Current adopted radius: 47.52 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
BD+20 2457
47.52 R☉
System Layout
2 planets linked to this host
Radial Velocity
Discovery
2009
Period
379.6 days
Radius
—
Mass
1.77e4 M⊕
Eq. Temp
—
Radial Velocity
Discovery
2009
Period
622.0 days
Radius
—
Mass
3963.2 M⊕
Eq. Temp
—
Provenance
Evidence Summary
Rows
5
Stellar refs
5
System refs
1
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4182.0 | — | 46.05 | — | — | — | 1539.7 | TICv8 | TICv8 |
| 4259 | 1.06 | — | — | — | — | 1539.7 | Mortier et al. 2013 | TICv8 |
| 4329.9 | — | 43.02 | — | 2.77 | — | 1539.7 | Gaia DR2 | TICv8 |
| 4259 | 10.83 | 71.02 | — | — | — | 1539.7 | Stassun et al. 2017 | TICv8 |
| 4137 | 2.80 | 49 | — | 3.17 | K2 II | 1539.7 | Niedzielski et al. 2009 | TICv8 |