Temperature
4875 K
4860 to 4951
←Back to Stellar Hosts
Stellar HostProfile
HD 128356
K3 V • 26.15 pc
Records
6
literature rows
Planets
1
system count
References
7
distinct source labels
HD: HD 128356HIP: HIP 71481TIC: TIC 1056530200
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: Jenkins et al. 2017 • System source: TICv8
Mass
0.65 Msun
0.65 to 0.79
Radius
0.85 Rsun
0.83 to 0.86
Age
10 Gyr
single adopted value
Luminosity
-0.44 log(Lsun)
-0.44 to -0.43
Distance
26.15 pc
single adopted value
Spectral Type
K3 V
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.85 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 128356
0.85 R☉
System Layout
Known planets
1 planets linked to this host
HD 128356 b
Radial Velocity
◌
Discovery
2016
Period
298.2 days
Radius
—
Mass
282.9 M⊕
Eq. Temp
—
HD 128356 and Its Lone Known Planet
HD 128356 is a K3 V star, an orange dwarf somewhat smaller and cooler than the Sun. It lies 85.3 light-years away and is estimated to be 10 billion years old. Its mass is 0.65 solar masses and its radius is 0.85 solar radii, both smaller than the Sun's corresponding values, and its temperature of 4880 K is cooler than the Sun's. One planet is known to orbit this star.
That planet, HD 128356 b, was discovered in 2016 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. Its minimum mass is 283 Earth masses, a lower bound on its true mass and larger than Earth's, and it completes an orbit in 298 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
6
Stellar refs
6
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitystable
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | K3 V | 26.15 | Michigan Catalog, Vol. 4 | TICv8 |
| 4951 | 0.78 | 0.83 | — | -0.43 | K3V | 26.15 | Turnbull 2015 | TICv8 |
| — | — | — | — | — | K0 | 26.15 | Cannon & Pickering 1918 | TICv8 |
| 4875 | 0.65 | 0.85 | 10 | -0.44 | K3 V | 26.15 | Jenkins et al. 2017 | TICv8 |
| 4860 | 0.79 | 0.86 | — | -0.43 | — | 26.15 | TICv8 | TICv8 |
| — | — | — | — | — | K2.5 IV | 26.15 | Gray et al. 2006 | TICv8 |