Temperature
5071 K
4962.8 to 5071
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Stellar HostProfile
HD 136418
Unclassified star • 105.2 pc
Records
6
literature rows
Planets
1
system count
References
7
distinct source labels
TIC: TIC 1101862696HIP: HIP 74961HD: HD 136418
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: Johnson et al. 2010 • System source: TICv8
Mass
1.33 Msun
1.25 to 1.48
Radius
3.40 Rsun
3.40 to 3.91
Age
4 Gyr
4 to 4.65
Luminosity
0.83 log(Lsun)
0.83 to 0.92
Distance
105.2 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 3.40 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 136418
3.40 R☉
System Layout
Known planets
1 planets linked to this host
HD 136418 b
Radial Velocity
◌
Discovery
2009
Period
464.3 days
Radius
—
Mass
680.2 M⊕
Eq. Temp
—
HD 136418 and Its Lone Known Planet
HD 136418 is a G5 star located 343 light-years from Earth. The star is estimated to be 4 billion years old, with a mass of 1.33 solar masses, a radius of 3.4 solar radii, and a temperature of 5070 K. Its mass and radius are both larger than the Sun's, while its temperature is cooler. One planet orbits this star.
That planet, HD 136418 b, was discovered in 2009 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. Its minimum mass is 680 Earth masses, making it larger than Earth and roughly 2.14 times Jupiter's mass. A minimum mass is a lower bound on a planet's true mass, distinguishing it from an ordinary mass estimate. HD 136418 b completes one orbit every 464 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
6
Stellar refs
6
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 |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | G5 | 105.2 | Cannon & Pickering 1918 | TICv8 |
| 4989 | 1.48 | 3.78 | — | — | — | 105.2 | Stassun et al. 2017 | TICv8 |
| 4979 | 1.25 | 3.46 | 4.65 | — | — | 105.2 | Sousa et al. 2015 | TICv8 |
| 5004 | — | 3.84 | — | — | — | 105.2 | TICv8 | TICv8 |
| 5071 | 1.33 | 3.40 | 4 | 0.83 | — | 105.2 | Johnson et al. 2010 | TICv8 |
| 4962.8 | — | 3.91 | — | 0.92 | — | 105.2 | Gaia DR2 | TICv8 |