Temperature
5838.5 K
5773.5 to 5847.4
G2 IV-V • 31.14 pc
Records
14
literature rows
Planets
1
system count
References
15
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
5838.5 K
5773.5 to 5847.4
Mass
1.34 Msun
1.06 to 1.67
Radius
1.95 Rsun
1.93 to 2.00
Age
3.70 Gyr
3.65 to 6.60
Luminosity
0.60 log(Lsun)
0.59 to 0.60
Distance
31.14 pc
single adopted value
Spectral Type
G2 IV-V
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Current adopted radius: 1.95 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
HD 221420
1.95 R☉
System Layout
1 planets linked to this host
Radial Velocity
Discovery
2019
Period
10066 days
Radius
—
Mass
6992.2 M⊕
Eq. Temp
—
Provenance
Evidence Summary
Rows
14
Stellar refs
14
System refs
1
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 31.14 | Nordstrom et al. 2004 | TICv8 |
| — | — | — | — | — | — | 31.14 | Valenti & Fischer 2005 | TICv8 |
| — | 1.34 | — | 3.70 | — | G1 V | 31.14 | Philipot et al. 2023 | TICv8 |
| — | — | — | — | — | K0 | 31.14 | Cannon & Pickering 1918 | TICv8 |
| 5847 | 1.35 | 1.95 | 3.65 | 0.60 | G2 IV-V | 31.14 | Venner et al. 2021 | TICv8 |
| — | 1.28 | — | 6.60 | 0.59 | G2 V | 31.14 | Li et al. 2021 | TICv8 |
| — | — | — | — | — | — | 31.14 | Henry et al. 1996 | TICv8 |
| — | — | — | — | — | G2 IV-V | 31.14 | Gray et al. 2006 | TICv8 |
| 5830 | 1.67 | — | — | — | — | 31.14 | Kane et al. 2019 | TICv8 |
| — | — | — | — | — | G2 V | 31.14 | Michigan Catalog, Vol. 1 | TICv8 |
| — | 1.34 | — | — | — | — | 31.14 | An et al. 2025 | TICv8 |
| 5847.4 | 1.06 | 1.93 | — | 0.59 | — | 31.14 | TICv8 | TICv8 |
| — | 1.06 | — | — | — | — | 31.14 | Feng et al. 2022 | TICv8 |
| 5773.5 | — | 2.00 | — | 0.60 | — | 31.14 | Gaia DR2 | TICv8 |