Temperature
5387 K
5387 to 5405
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Stellar HostProfile
K2-397
G7 • 199.4 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
TIC: TIC 6139066
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: Zink et al. 2021 • System source: TICv8
Mass
0.94 Msun
0.94 to 0.94
Radius
0.97 Rsun
0.97 to 0.97
Distance
199.4 pc
single adopted value
Spectral Type
G7
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.97 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-397
0.97 R☉
System Layout
Known planets
1 planets linked to this host
K2-397 b
Transit
◌
Discovery
2022
Period
3.57 days
Radius
2.42 R⊕
Mass
—
Eq. Temp
—
K2-397 and Its Super-Earth
K2-397 is a G7 star located 650 light-years away. Its mass is 0.937 solar masses, its radius is 0.966 solar radii, and its temperature is 5390 K, which is cooler than the Sun's. One planet orbits this host.
That planet is K2-397 b, a Super-Earth discovered by transit in 2022. It completes an orbit every 3.57 days, and its radius is 2.42 Earth radii, larger than Earth's. A Super-Earth reaches 2.5 times Earth's radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Stellar refs
3
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositystable
Surface Gravitydisputed
Metallicitystable
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5387 | 0.94 | 0.97 | — | — | — | 199.4 | Christiansen et al. 2022 | TICv8 |
| 5387 | 0.94 | 0.97 | — | — | G7 | 199.4 | Zink et al. 2021 | TICv8 |
| 5405 | 0.94 | 0.97 | — | -0.14 | — | 199.4 | TICv8 | TICv8 |