Temperature
4799.3 K
4726.3 to 4990.1
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Stellar HostProfile
K2-118
Unclassified star • 321.7 pc
Records
4
literature rows
Planets
1
system count
References
5
distinct source labels
TIC: TIC 293496724
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
0.78 Msun
0.76 to 0.78
Radius
0.79 Rsun
0.70 to 0.79
Luminosity
-0.53 log(Lsun)
-0.56 to -0.53
Distance
321.7 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
K2-118
0.79 R☉
System Layout
Known planets
1 planets linked to this host
K2-118 b
Transit
◌
Discovery
2017
Period
50.92 days
Radius
2.54 R⊕
Mass
—
Eq. Temp
—
K2-118: A Distant Star With One Known Planet
K2-118 is a star located 1050 light-years away. It has 0.776 solar masses, a radius of 0.789 solar radii, and a temperature of 4800 K. Its mass and radius are smaller than the Sun's, and it is cooler than the Sun. One planet has been found orbiting this star.
That planet, K2-118 b, is a Neptune-like world discovered by the transit method in 2017. 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. K2-118 b completes an orbit every 50.9 days. Its radius is 2.54 Earth radii, 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 Gravitystable
Metallicitystable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | 0.70 | — | — | — | 321.7 | Kruse et al. 2019 | TICv8 |
| 4799.3 | 0.78 | 0.79 | — | -0.53 | — | 321.7 | TICv8 | TICv8 |
| 4990.1 | — | 0.70 | — | -0.56 | — | 321.7 | Gaia DR2 | TICv8 |
| 4726.3 | 0.76 | 0.73 | — | — | — | 321.7 | Dressing et al. 2017 | TICv8 |