Temperature
5396 K
5382.5 to 5500
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Stellar HostProfile
K2-210
Unclassified star • 176.5 pc
Records
4
literature rows
Planets
1
system count
References
5
distinct source labels
TIC: TIC 388801714
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: Mayo et al. 2018 • System source: TICv8
Mass
0.91 Msun
0.91 to 0.94
Radius
0.85 Rsun
0.85 to 0.89
Distance
176.5 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.85 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-210
0.85 R☉
System Layout
Known planets
1 planets linked to this host
K2-210 b
Transit
◌
Discovery
2018
Period
0.57 days
Radius
0.86 R⊕
Mass
—
Eq. Temp
—
K2-210 b: A Sub-Earth in a Close Orbit
K2-210 is a star located 576 light-years away, and it hosts one known planet. The star's reported mass estimate is 0.912 solar masses, its radius estimate is 0.852 solar radii, and its temperature is 5400 K. Each of these values is smaller or cooler than the corresponding solar value.
The planet K2-210 b was discovered in 2018 using the transit method, which detects the small dip in a star's brightness when a planet passes in front of it. Repeated dips help establish the planet's orbital period. K2-210 b completes one orbit in 0.57 days, and its radius is 0.86 Earth radii.
That radius places K2-210 b in the Sub-Earth class, meaning it is smaller than Earth.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
4
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 |
|---|---|---|---|---|---|---|---|---|
| 5500 | — | 0.89 | — | — | — | 176.5 | Adams et al. 2021 | TICv8 |
| 5399 | 0.94 | 0.88 | — | -0.23 | — | 176.5 | TICv8 | TICv8 |
| 5396 | 0.91 | 0.85 | — | — | — | 176.5 | Mayo et al. 2018 | TICv8 |
| 5382.5 | — | 0.86 | — | -0.25 | — | 176.5 | Gaia DR2 | TICv8 |