Temperature
6046.6 K
5922 to 6046.6
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Stellar HostProfile
K2-166
Unclassified star • 476.9 pc
Records
5
literature rows
Planets
2
system count
References
6
distinct source labels
TIC: TIC 377171980
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
1.12 Msun
1.07 to 1.16
Radius
1.55 Rsun
1.20 to 1.61
Luminosity
0.46 log(Lsun)
0.46 to 0.46
Distance
476.9 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.55 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-166
1.55 R☉
System Layout
Known planets
2 planets linked to this host
EPIC 201615463 c
Transit
◌
Discovery
2019
Period
3.80 days
Radius
1.22 R⊕
Mass
—
Eq. Temp
—
K2-166 b
Transit
◌
Discovery
2018
Period
8.53 days
Radius
2.19 R⊕
Mass
—
Eq. Temp
1140 K
K2-166: A Distant Star With Two Known Worlds
K2-166 is a star 1560 light-years away with two known planets. The host star has a mass of 1.12 solar masses and a radius of 1.55 solar radii, and its temperature is 6050 K. Its radius is larger than the Sun's, and its temperature is hotter than the Sun's.
Both planets were found by the transit method. K2-166 b was discovered in 2018 and is classified as a Super-Earth, with a radius of 2.19 Earth radii and an orbital period of 8.53 days. EPIC 201615463 c was discovered in 2019 and is classified as Earth-like, with a radius of 1.22 Earth radii and an orbital period of 3.8 days. Each planet's radius is larger than Earth's.
Among the listed planets, EPIC 201615463 c has the shortest year, at 3.8 days, and the smallest radius, at 1.22 Earth radii. K2-166 b has the longest year, at 8.53 days, and the largest radius, at 2.19 Earth radii.
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 |
|---|---|---|---|---|---|---|---|---|
| 5942.5 | — | 1.60 | — | 0.46 | — | 476.9 | Gaia DR2 | TICv8 |
| 5960 | 1.16 | 1.61 | — | — | — | 476.9 | Livingston et al. 2018 | TICv8 |
| — | 1.07 | — | — | — | — | 476.9 | Heller et al. 2019 | TICv8 |
| 5922 | 1.07 | 1.20 | — | — | — | 476.9 | Mayo et al. 2018 | TICv8 |
| 6046.6 | 1.12 | 1.55 | — | 0.46 | — | 476.9 | TICv8 | TICv8 |