Temperature
4140 K
4043.3 to 4245
K2 • 269.1 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
4140 K
4043.3 to 4245
Mass
4.30 Msun
single adopted value
Radius
91.40 Rsun
83.80 to 109.5
Age
0.15 Gyr
single adopted value
Luminosity
3.36 log(Lsun)
3.26 to 3.46
Distance
269.1 pc
single adopted value
Spectral Type
K2
Multiple classifications reported
Planets
2
Stable across source rows
Scale Comparison
Current adopted radius: 91.40 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
HD 81817
91.40 R☉
System Layout
2 planets linked to this host
Radial Velocity
Discovery
2020
Period
1021.2 days
Radius
—
Mass
7668.6 M⊕
Eq. Temp
—
Radial Velocity
Discovery
2022
Period
623.0 days
Radius
—
Mass
7185.8 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 |
|---|---|---|---|---|---|---|---|---|
| 4140 | 4.30 | 83.80 | 0.15 | 3.26 | K3 III | 269.1 | Bang et al. 2020 | TICv8 |
| — | 4.30 | — | — | — | — | 269.1 | Feng et al. 2022 | TICv8 |
| 4245 | — | 91.40 | — | — | — | 269.1 | TICv8 | TICv8 |
| 4043.3 | — | 109.5 | — | 3.46 | — | 269.1 | Gaia DR2 | TICv8 |
| — | — | — | — | — | K2 | 269.1 | Cannon & Pickering 1918 | TICv8 |