Temperature
5505.6 K
5338.8 to 5505.6
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Stellar HostProfile
K2-159
Unclassified star • 171.0 pc
Records
4
literature rows
Planets
1
system count
References
5
distinct source labels
TIC: TIC 35064295
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: TICv8 • System source: TICv8
Mass
0.97 Msun
0.89 to 0.97
Radius
0.79 Rsun
0.79 to 0.83
Luminosity
-0.29 log(Lsun)
-0.30 to -0.29
Distance
171.0 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.79 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-159
0.79 R☉
System Layout
Known planets
1 planets linked to this host
K2-159 b
Transit
◌
Discovery
2018
Period
12.42 days
Radius
2.26 R⊕
Mass
—
Eq. Temp
684 K
K2-159 b: A Super-Earth in a Single-Planet System
K2-159 is a star located 558 light-years away. It has a mass of 0.966 solar masses, a radius of 0.788 solar radii, and a temperature of 5510 K. Its reported radius estimate is smaller than the Sun's, and its reported temperature is cooler than the Sun's.
One planet orbits K2-159: K2-159 b. This Super-Earth was discovered in 2018 by the transit method, in which a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. Repeated dips help establish orbital periods. K2-159 b completes an orbit every 12.4 days, and its radius of 2.26 Earth radii is larger than Earth's. In the size classification used here, a Super-Earth reaches 2.5 times Earth's radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
4
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5425 | 0.90 | 0.83 | — | — | — | 171.0 | Livingston et al. 2018 | TICv8 |
| 5505.6 | 0.97 | 0.79 | — | -0.29 | — | 171.0 | TICv8 | TICv8 |
| 5419 | 0.89 | 0.83 | — | — | — | 171.0 | Mayo et al. 2018 | TICv8 |
| 5338.8 | — | 0.83 | — | -0.30 | — | 171.0 | Gaia DR2 | TICv8 |