Temperature
4246.8 K
4246.8 to 4581
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Stellar HostProfile
K2-174
Unclassified star โข 99.93 pc
Records
9
literature rows
Planets
1
system count
References
10
distinct source labels
TIC: TIC 243014114
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 โข System source: TICv8
Mass
0.66 Msun
0.66 to 0.70
Radius
0.76 Rsun
0.64 to 0.76
Luminosity
-0.77 log(Lsun)
-0.81 to -0.77
Distance
99.93 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.76 Rโ (circles scaled linearly by radius)
Sun
1.0 Rโ baseline
K2-174
0.76 Rโ
System Layout
Known planets
1 planets linked to this host
K2-174 b
Transit
โ
Discovery
2018
Period
19.56 days
Radius
2.60 Rโ
Mass
โ
Eq. Temp
455 K
K2-174 b: A Neptune-Like World Orbiting a Cool Dwarf Star
K2-174 is a star located 326 light-years from Earth, and it hosts one known planet. The star's reported mass estimate is 0.66 solar masses, its radius is 0.759 solar radii, and its temperature is 4250 K. Each of these values is smaller or cooler than the corresponding solar figure. The star is cooler than the Sun, with a temperature of 4250 K, and its radius and mass estimates are both smaller than the Sun's.
The planet, K2-174 b, is classified as Neptune-like. It was discovered in 2018 by the transit method, which occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. Repeated dips help establish orbital periods. K2-174 b completes one orbit in 19.6 days. Its radius estimate is 2.6 Earth radii, which is larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
9
Stellar refs
9
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 |
|---|---|---|---|---|---|---|---|---|
| 4455 | 0.70 | 0.68 | โ | โ | โ | 99.93 | Livingston et al. 2019 | TICv8 |
| โ | โ | โ | โ | โ | โ | 99.93 | Barros et al. 2016 | TICv8 |
| 4581 | โ | 0.67 | โ | โ | โ | 99.93 | Crossfield et al. 2016 | TICv8 |
| 4246.8 | โ | 0.76 | โ | โ | โ | 99.93 | ExoFOP | TICv8 |
| 4246.8 | 0.66 | 0.76 | โ | -0.77 | โ | 99.93 | TICv8 | TICv8 |
| โ | โ | โ | โ | โ | โ | 99.93 | Dressing et al. 2017 | TICv8 |
| 4500 | 0.67 | 0.64 | โ | โ | โ | 99.93 | Mayo et al. 2018 | TICv8 |
| โ | โ | 0.67 | โ | โ | โ | 99.93 | Kruse et al. 2019 | TICv8 |
| 4430.4 | โ | 0.67 | โ | -0.81 | โ | 99.93 | Gaia DR2 | TICv8 |