Temperature
5503 K
5382 to 5503
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Stellar HostProfile
K2-158
Unclassified star • 197.3 pc
Records
4
literature rows
Planets
2
system count
References
5
distinct source labels
TIC: TIC 35021200
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: Livingston et al. 2018 • System source: TICv8
Mass
0.92 Msun
0.92 to 0.94
Radius
0.95 Rsun
0.89 to 0.95
Distance
197.3 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.95 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-158
0.95 R☉
System Layout
Known planets
2 planets linked to this host
K2-158: A Distant Star With Two Small Worlds
K2-158 is a star 644 light-years away. It has 0.92 solar masses, 0.95 solar radii, and a temperature of 5500 K. Both of its known planets were discovered by the transit method in 2018.
K2-158 b is a Neptune-like planet with a radius of 2.64 Earth radii. It orbits its star every 10.1 days. Among the listed planets, it has the largest radius by reported estimates and the longest year by reported estimates.
K2-158 c is an Earth-like planet with a radius of 1.28 Earth radii. Its orbital period is 5.9 days. Among the listed planets, it has the smallest radius by reported estimates and the shortest year by reported estimates. Both planets' reported radius estimates are larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
4
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitystable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5489 | 0.93 | 0.89 | — | — | — | 197.3 | Mayo et al. 2018 | TICv8 |
| 5503 | 0.92 | 0.95 | — | — | — | 197.3 | Livingston et al. 2018 | TICv8 |
| 5423 | 0.94 | 0.95 | — | -0.16 | — | 197.3 | TICv8 | TICv8 |
| 5382 | — | 0.95 | — | -0.16 | — | 197.3 | Gaia DR2 | TICv8 |