Temperature
5134 K
4977.5 to 5413
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Stellar HostProfile
K2-58
Unclassified star • 181.7 pc
Records
8
literature rows
Planets
3
system count
References
8
distinct source labels
TIC: TIC 437703489
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: Mayo et al. 2018 • System source: TICv8
Mass
0.86 Msun
0.83 to 0.89
Radius
0.80 Rsun
0.76 to 0.86
Distance
181.7 pc
single adopted value
Planets
3
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.80 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-58
0.80 R☉
System Layout
Known planets
3 planets linked to this host
K2-58: A Distant Star With Three Transiting Planets
K2-58 is a star located 593 light-years away. Its reported mass estimate is smaller than the Sun's, at 0.858 solar masses, and its reported radius estimate is also smaller than the Sun's, at 0.803 solar radii. The star's reported temperature is cooler than the Sun's, at 5130 K. Three planets are known to orbit this host: K2-58 b, K2-58 c, and K2-58 d.
All three planets were discovered in 2016 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. Repeated dips help establish orbital periods, the time each planet takes to complete one orbit.
K2-58 b is a Neptune-like planet with an orbital period of 7.05 days and a radius of 2.68 Earth radii, larger than Earth's. Among the listed planets, it has the largest radius and the second-shortest year.
K2-58 c is a Super-Earth with an orbital period of 2.54 days and a radius of 1.62 Earth radii, also larger than Earth's. Among the listed planets, it has the shortest year and the smallest radius.
K2-58 d is a Super-Earth with an orbital period of 22.9 days and a radius of 1.71 Earth radii, larger than Earth's as well. Among the listed planets, it has the longest year and the second-smallest radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
8
Stellar refs
7
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 |
|---|---|---|---|---|---|---|---|---|
| 4998 | — | 0.76 | — | — | — | 181.7 | Vanderburg et al. 2016 | TICv8 |
| 4977.5 | — | 0.84 | — | -0.41 | — | 181.7 | Gaia DR2 | TICv8 |
| — | — | 0.84 | — | — | — | 181.7 | Kruse et al. 2019 | TICv8 |
| — | — | — | — | — | — | 181.7 | Barros et al. 2016 | TICv8 |
| 5413 | 0.89 | 0.86 | — | — | — | 181.7 | Crossfield et al. 2016 | TICv8 |
| — | — | 0.84 | — | — | — | 181.7 | Kruse et al. 2019 | TICv8 |
| 5134 | 0.86 | 0.80 | — | — | — | 181.7 | Mayo et al. 2018 | TICv8 |
| 5020 | 0.83 | 0.84 | — | -0.40 | — | 181.7 | TICv8 | TICv8 |