Temperature
4920 K
4775 to 5055
←Back to Stellar Hosts
Stellar HostProfile
K2-59
Unclassified star • 311.3 pc
Records
5
literature rows
Planets
2
system count
References
6
distinct source labels
TIC: TIC 188570847
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
0.81 Msun
0.77 to 0.81
Radius
0.66 Rsun
0.64 to 0.73
Luminosity
-0.64 log(Lsun)
-0.66 to -0.64
Distance
311.3 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.66 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-59
0.66 R☉
System Layout
Known planets
2 planets linked to this host
K2-59: A Distant Star With Two Super-Earths
K2-59 is a star located 1020 light-years away, and it hosts two planets. The star has a mass of 0.81 solar masses and a radius of 0.658 solar radii, both smaller than the Sun's. Its temperature is 4920 K, cooler than the Sun's.
Both planets were discovered by transit in 2016. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. Both K2-59 b and K2-59 c are Super-Earths, a size class that reaches 2.5 times Earth's radius.
K2-59 b has a radius of 2.41 Earth radii and an orbital period of 20.7 days. Its radius is larger than Earth's, and among the listed planets it has the largest radius and the longest year. K2-59 c has a radius of 2.3 Earth radii and an orbital period of 11.3 days. Its radius is also larger than Earth's, and among the listed planets it has the smallest radius and the shortest year.
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Stellar refs
5
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | 0.64 | — | — | — | 311.3 | Kruse et al. 2019 | TICv8 |
| 4934.8 | — | 0.64 | — | -0.66 | — | 311.3 | Gaia DR2 | TICv8 |
| 5055 | 0.77 | 0.73 | — | — | — | 311.3 | Crossfield et al. 2016 | TICv8 |
| 4775 | — | 0.73 | — | — | — | 311.3 | Vanderburg et al. 2016 | TICv8 |
| 4920 | 0.81 | 0.66 | — | -0.64 | — | 311.3 | TICv8 | TICv8 |