Temperature
5631 K
5429 to 5695
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Stellar HostProfile
HD 102117
Unclassified star • 39.58 pc
Records
13
literature rows
Planets
1
system count
References
14
distinct source labels
HIP: HIP 57291HD: HD 102117TIC: TIC 267519701
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: Ghezzi et al. 2010 • System source: TICv8
Mass
1.10 Msun
0.95 to 1.11
Radius
1.21 Rsun
1.21 to 1.26
Age
6 Gyr
6 to 10
Luminosity
0.12 log(Lsun)
0.12 to 0.20
Distance
39.58 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.21 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 102117
1.21 R☉
System Layout
Known planets
1 planets linked to this host
HD 102117 b
Radial Velocity
◌
Discovery
2005
Period
20.81 days
Radius
—
Mass
54.03 M⊕
Eq. Temp
—
HD 102117 and Its Planet
HD 102117 is a G6 V star located 129 light-years away. A spectral type such as G6 V identifies a Sun-like main-sequence dwarf, and this star's reported temperature of 5630 K is cooler than the Sun's, while its reported radius estimate of 1.21 solar radii is larger than the Sun's. The star also has a mass of 1.1 solar masses and an age of 6 billion years. It hosts one planet.
That planet is HD 102117 b, discovered in 2005 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. HD 102117 b has a minimum mass of 54 Earth masses, meaning its true mass is at least this value, and this minimum mass is larger than Earth's. Its orbital period is 20.8 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
13
Stellar refs
13
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5657 | 1.01 | — | — | 0.19 | — | 39.58 | Sousa et al. 2008 | TICv8 |
| 5631 | 1.10 | 1.21 | 6 | 0.12 | — | 39.58 | Ghezzi et al. 2010 | TICv8 |
| — | 1.08 | 1.26 | 9.40 | — | — | 39.58 | Takeda et al. 2007 | TICv8 |
| — | — | — | — | — | G5 | 39.58 | Cannon & Pickering 1918 | TICv8 |
| 5695 | 1.11 | — | — | — | — | 39.58 | Butler et al. 2006 | TICv8 |
| — | — | — | — | — | — | 39.58 | Valenti & Fischer 2005 | TICv8 |
| — | — | — | — | — | G6 V | 39.58 | Michigan Catalog, Vol. 1 | TICv8 |
| 5655 | 1.06 | 1.23 | — | — | — | 39.58 | Stassun et al. 2017 | TICv8 |
| 5672 | 1.03 | — | — | 0.20 | G6 V | 39.58 | Lovis et al. 2005 | TICv8 |
| 5630 | — | 1.26 | — | 0.16 | — | 39.58 | Gaia DR2 | TICv8 |
| 5667.9 | 1.01 | 1.24 | — | 0.16 | — | 39.58 | TICv8 | TICv8 |
| 5429 | 0.95 | — | 10 | — | G6 V | 39.58 | Tinney et al. 2005 | TICv8 |
| — | — | — | — | — | — | 39.58 | Nordstrom et al. 2004 | TICv8 |