Temperature
5697 K
5615 to 5773
G8 IV (+ G) • 53.28 pc
Records
19
literature rows
Planets
2
system count
References
19
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
5697 K
5615 to 5773
Mass
1.05 Msun
1 to 1.15
Radius
1.15 Rsun
1.05 to 1.17
Age
5.56 Gyr
3.52 to 8
Luminosity
0.10 log(Lsun)
0.07 to 0.11
Distance
53.28 pc
single adopted value
Spectral Type
G8 IV (+ G)
Multiple classifications reported
Planets
2
Stable across source rows
Scale Comparison
Current adopted radius: 1.15 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
HD 66428
1.15 R☉
System Layout
2 planets linked to this host
Radial Velocity
Discovery
2005
Period
2269.8 days
Radius
—
Mass
3478.9 M⊕
Eq. Temp
—
Radial Velocity
Discovery
2021
Period
1.05e4 days
Radius
—
Mass
560.6 M⊕
Eq. Temp
—
Provenance
Evidence Summary
Rows
19
Stellar refs
18
System refs
1
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | G8 IV (+ G) | 53.28 | Michigan Catalog, Vol. 5 | TICv8 |
| — | 1.06 | — | — | — | — | 53.28 | Bryan et al. 2016 | TICv8 |
| 5705 | 1.01 | — | — | 0.11 | — | 53.28 | Sousa et al. 2008 | TICv8 |
| — | — | — | — | — | — | 53.28 | Wright et al. 2004 | TICv8 |
| — | — | — | — | — | — | 53.28 | Valenti & Fischer 2005 | TICv8 |
| 5773 | 1.08 | 1.10 | 3.52 | — | — | 53.28 | Barbato et al. 2018 | TICv8 |
| — | — | — | — | — | — | 53.28 | Nidever et al. 2002 | TICv8 |
| 5615 | 1 | 1.15 | 8 | 0.07 | — | 53.28 | Ghezzi et al. 2010 | TICv8 |
| — | 1.06 | 1.05 | 5.56 | — | — | 53.28 | Takeda et al. 2007 | TICv8 |
| — | 1.15 | — | — | — | — | 53.28 | An et al. 2025 | TICv8 |
| — | 1.01 | — | — | — | — | 53.28 | Feng et al. 2022 | TICv8 |
| 5752 | 1.10 | — | — | — | — | 53.28 | Butler et al. 2006 | TICv8 |
| 5689 | — | 1.15 | — | 0.10 | — | 53.28 | Gaia DR2 | TICv8 |
| — | — | — | — | — | G8 IV (+ G) | 53.28 | Michigan Catalog, Vol. 5 | TICv8 |
| 5716 | 1 | 1.13 | — | — | — | 53.28 | Stassun et al. 2017 | TICv8 |
| — | — | — | — | — | — | 53.28 | Nordstrom et al. 2004 | TICv8 |
| — | — | — | — | — | G5 | 53.28 | Cannon & Pickering 1918 | TICv8 |
| 5647.6 | 1.05 | 1.17 | — | — | — | 53.28 | Rosenthal et al. 2021 | TICv8 |
| 5669 | 1.01 | 1.16 | — | 0.10 | — | 53.28 | TICv8 | TICv8 |