Temperature
5543 K
5379 to 5543
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Stellar HostProfile
K2-391
G7 • 507.9 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
TIC: TIC 9054633
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
0.76 Msun
0.76 to 0.93
Radius
0.57 Rsun
0.57 to 1.81
Distance
507.9 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: 0.57 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-391
0.57 R☉
System Layout
Known planets
1 planets linked to this host
K2-391 b
Transit
◌
Discovery
2022
Period
4.62 days
Radius
1.37 R⊕
Mass
—
Eq. Temp
—
K2-391 b: A Nearby Earth-Like World
K2-391 is a G7 star located 1660 light-years from Earth. Its reported mass is 0.757 solar masses and its reported radius is 0.566 solar radii, smaller than the Sun's. The star's reported temperature is 5540 K, cooler than the Sun's. One planet orbits this host.
K2-391 b is an Earth-like planet discovered by transit in 2022. Its reported radius estimate is 1.37 Earth radii, larger than Earth's. It completes an orbit every 4.62 days.
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 |
|---|---|---|---|---|---|---|---|---|
| 5543 | 0.76 | 0.57 | — | — | — | 507.9 | Christiansen et al. 2022 | TICv8 |
| 5543 | 0.76 | 0.57 | — | — | G7 | 507.9 | Zink et al. 2021 | TICv8 |
| 5379 | 0.93 | 1.81 | — | 0.39 | — | 507.9 | TICv8 | TICv8 |