Temperature
5605.6 K
5494 to 5631
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Stellar HostProfile
K2-190
Unclassified star • 160.7 pc
Records
5
literature rows
Planets
2
system count
References
6
distinct source labels
TIC: TIC 392469577
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
0.99 Msun
0.90 to 0.99
Radius
0.98 Rsun
0.91 to 1
Luminosity
-0.07 log(Lsun)
-0.09 to -0.07
Distance
160.7 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.98 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-190
0.98 R☉
System Layout
Known planets
2 planets linked to this host
K2-190 and Its Two Earth-Like Planets
K2-190 is a star 524 light-years away with two known planets, both discovered by transit in 2018. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness, and repeated dips help establish orbital periods. The star has a mass of 0.991 solar masses, a radius of 0.981 solar radii, and a temperature of 5610 K, which is cooler than the Sun's reported temperature.
Both planets are Earth-like in size class, meaning their radii stay within 1.5 times Earth's radius. K2-190 b has a radius of 1.36 Earth radii and an orbital period of 10.1 days. K2-190 c has a radius of 1.09 Earth radii and an orbital period of 21.6 days. Among the listed planets, K2-190 b has the shortest year and the largest radius by reported estimates, while K2-190 c has the longest year and the smallest radius. Both planets' reported radius estimates are larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Stellar refs
5
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 |
|---|---|---|---|---|---|---|---|---|
| 5631 | 0.90 | 0.91 | — | — | — | 160.7 | Mayo et al. 2018 | TICv8 |
| — | — | 1 | — | — | — | 160.7 | Kruse et al. 2019 | TICv8 |
| — | — | — | — | — | — | 160.7 | Pope et al. 2016 | TICv8 |
| 5494 | — | 1.00 | — | -0.09 | — | 160.7 | Gaia DR2 | TICv8 |
| 5605.6 | 0.99 | 0.98 | — | -0.07 | — | 160.7 | TICv8 | TICv8 |