Temperature
5625 K
5564 to 5641.5
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Stellar HostProfile
HD 168746
Unclassified star • 41.57 pc
Records
16
literature rows
Planets
1
system count
References
17
distinct source labels
HIP: HIP 90004TIC: TIC 18097734HD: HD 168746
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
0.95 Msun
0.85 to 1.07
Radius
1.01 Rsun
1.01 to 1.10
Age
8 Gyr
8 to 12.40
Luminosity
-0.03 log(Lsun)
-0.03 to 0.04
Distance
41.57 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.01 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 168746
1.01 R☉
System Layout
Known planets
1 planets linked to this host
HD 168746 b
Radial Velocity
◌
Discovery
2002
Period
6.40 days
Radius
—
Mass
85.81 M⊕
Eq. Temp
—
HD 168746 and Its Planet
HD 168746 is a G-type star 136 light-years away. Its mass is 0.95 solar masses, its radius is 1.01 solar radii, its temperature is 5630 K, and its age is 8 billion years. Its spectral type indicates a Sun-like dwarf, though its reported temperature is cooler than the Sun's. One planet is known to orbit this host.
That planet, HD 168746 b, was discovered in 2002 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion and can reveal the planet along with its orbital period. HD 168746 b has a minimum mass of 85.8 Earth masses, a lower bound on its true mass and larger than Earth's, and it completes an orbit in 6.4 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
16
Stellar refs
16
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 |
|---|---|---|---|---|---|---|---|---|
| 5625 | 0.95 | 1.01 | 8 | -0.03 | — | 41.57 | Ghezzi et al. 2010 | TICv8 |
| — | — | — | — | — | — | 41.57 | Nidever et al. 2002 | TICv8 |
| 5571.3 | 0.98 | 1.08 | — | 7.24e-3 | — | 41.57 | TICv8 | TICv8 |
| — | — | — | — | — | G5 | 41.57 | Cannon & Pickering 1918 | TICv8 |
| 5641.5 | — | 1.05 | — | 5.87e-3 | — | 41.57 | Gaia DR2 | TICv8 |
| 5564 | 0.93 | — | — | — | — | 41.57 | Butler et al. 2006 | TICv8 |
| — | 0.92 | 1.04 | 12.40 | — | — | 41.57 | Takeda et al. 2007 | TICv8 |
| 5570 | 1.07 | 1.09 | — | — | — | 41.57 | Stassun et al. 2017 | TICv8 |
| — | — | — | — | — | — | 41.57 | Valenti & Fischer 2005 | TICv8 |
| — | — | — | — | — | — | 41.57 | Wright et al. 2004 | TICv8 |
| — | — | — | — | — | — | 41.57 | Nordstrom et al. 2004 | TICv8 |
| 5568 | 0.85 | — | — | 0.03 | — | 41.57 | Sousa et al. 2008 | TICv8 |
| — | — | — | — | — | G5 V | 41.57 | Michigan Catalog, Vol. 5 | TICv8 |
| 5601 | 0.88 | — | — | — | — | 41.57 | Santos et al. 2004 | TICv8 |
| 5610 | 0.88 | — | — | 0.04 | G5 | 41.57 | Pepe et al. 2002 | TICv8 |
| 5618.9 | 0.89 | 1.10 | — | — | — | 41.57 | Rosenthal et al. 2021 | TICv8 |