Temperature
4597 K
4331 to 4597
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Stellar HostProfile
K2-156
Unclassified star • 150.2 pc
Records
5
literature rows
Planets
1
system count
References
6
distinct source labels
TIC: TIC 176868262
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: Livingston et al. 2018 • System source: TICv8
Mass
0.66 Msun
0.64 to 0.68
Radius
0.66 Rsun
0.62 to 0.71
Distance
150.2 pc
single adopted value
Planets
1
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
K2-156
0.66 R☉
System Layout
Known planets
1 planets linked to this host
K2-156 b
Transit
◌
Discovery
2018
Period
0.81 days
Radius
1.10 R⊕
Mass
—
Eq. Temp
—
K2-156 b: A Close-In Earth-Sized World
K2-156 is a star 490 light-years from Earth with one known planet, K2-156 b, 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. The star has a mass of 0.66 solar masses, a radius of 0.66 solar radii, and a temperature of 4600 K, making it smaller, less massive, and cooler than the Sun.
K2-156 b is classified as Earth-like, a size class for planets with radii within 1.5 times Earth's. Its radius is 1.1 Earth radii, larger than Earth's, and it completes an orbit every 0.813 days. That short orbital period reflects its position as a close-in planet, though its exact distance from the star is not specified.
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 |
|---|---|---|---|---|---|---|---|---|
| 4477.9 | — | 0.63 | — | -0.84 | — | 150.2 | Gaia DR2 | TICv8 |
| 4460 | 0.64 | 0.62 | — | — | — | 150.2 | Mayo et al. 2018 | TICv8 |
| 4597 | 0.66 | 0.66 | — | — | — | 150.2 | Livingston et al. 2018 | TICv8 |
| 4460 | — | 0.62 | — | — | — | 150.2 | Adams et al. 2021 | TICv8 |
| 4331 | 0.68 | 0.71 | — | -0.80 | — | 150.2 | TICv8 | TICv8 |