Temperature
5829 K
5805.4 to 5940
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Stellar HostProfile
HD 13931
Unclassified star • 47.40 pc
Records
14
literature rows
Planets
1
system count
References
15
distinct source labels
HIP: HIP 10626HD: HD 13931TIC: TIC 292851928
Approximate color
from effective temperature
Canonical Summary
Adopted host values from one source row
Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.
Stellar source: Howard et al. 2010 • System source: TICv8
Mass
1.02 Msun
1.02 to 1.30
Radius
1.23 Rsun
1.23 to 1.30
Age
8.40 Gyr
8.36 to 8.40
Luminosity
0.20 log(Lsun)
0.20 to 0.24
Distance
47.40 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.23 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 13931
1.23 R☉
System Layout
Known planets
1 planets linked to this host
HD 13931 b
Radial Velocity
◌
Discovery
2009
Period
4218 days
Radius
—
Mass
699.2 M⊕
Eq. Temp
—
HD 13931 and Its Lone Known Planet
HD 13931 is a G0 star 155 light-years away, with one known planet. Its reported mass estimate is 1.02 solar masses and its reported radius estimate is 1.23 solar radii, both larger than the Sun's. The star's reported temperature of 5830 K is hotter than the Sun's, and its age is 8.4 billion years.
The one known planet is HD 13931 b, discovered in 2009 by radial velocity, a method that measures the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period. The planet's minimum mass is 699 Earth masses, roughly 2.2 times Jupiter's mass. It completes one orbit every 4220 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
14
Stellar refs
14
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5829 | 1.02 | 1.23 | 8.40 | 0.20 | — | 47.40 | Howard et al. 2010 | TICv8 |
| — | — | — | — | — | G0 | 47.40 | Cannon & Pickering 1918 | TICv8 |
| 5829 | 1.02 | — | — | — | G0 | 47.40 | Xiao et al. 2023 | TICv8 |
| — | — | — | — | — | — | 47.40 | Nordstrom et al. 2004 | TICv8 |
| 5853 | 1.06 | 1.28 | — | 0.24 | — | 47.40 | TICv8 | TICv8 |
| — | 1.02 | 1.23 | 8.36 | — | — | 47.40 | Takeda et al. 2007 | TICv8 |
| 5837.5 | — | 1.29 | — | 0.24 | — | 47.40 | Gaia DR2 | TICv8 |
| — | 1.02 | — | — | — | — | 47.40 | Bryan et al. 2016 | TICv8 |
| — | — | — | — | — | — | 47.40 | Wright et al. 2004 | TICv8 |
| 5867 | 1.30 | 1.25 | — | — | — | 47.40 | Stassun et al. 2017 | TICv8 |
| 5805.4 | 1.02 | 1.30 | — | — | — | 47.40 | Rosenthal et al. 2021 | TICv8 |
| — | — | — | — | — | — | 47.40 | Nidever et al. 2002 | TICv8 |
| 5940 | 1.05 | — | — | — | — | 47.40 | Santos et al. 2013 | TICv8 |
| — | — | — | — | — | — | 47.40 | Valenti & Fischer 2005 | TICv8 |