Temperature
5558 K
5512 to 5558
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Stellar HostProfile
K2-390
G4 • 456.1 pc
Records
4
literature rows
Planets
1
system count
References
5
distinct source labels
TIC: TIC 9030119
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
0.79 Msun
0.79 to 0.97
Radius
0.97 Rsun
0.97 to 0.98
Distance
456.1 pc
single adopted value
Spectral Type
G4
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
K2-390
0.97 R☉
System Layout
Known planets
1 planets linked to this host
K2-390 b
Transit
◌
Discovery
2022
Period
3.31 days
Radius
4.66 R⊕
Mass
—
Eq. Temp
—
K2-390 b: A Jupiter-like World in a Distant Star System
K2-390 is a G4 star located 1490 light-years away. Its mass is 0.789 solar masses, its radius is 0.966 solar radii, and its temperature is 5560 K. The star's reported temperature is cooler than the Sun's. One planet orbits this host.
That planet is K2-390 b, a Jupiter-like world discovered by transit in 2022. It completes an orbit every 3.31 days and has a radius of 4.66 Earth radii. Its reported radius estimate is larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
4
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 |
|---|---|---|---|---|---|---|---|---|
| 5558 | 0.79 | 0.97 | — | — | G4 | 456.1 | Zink et al. 2021 | TICv8 |
| 5512 | 0.97 | 0.98 | — | -0.10 | — | 456.1 | TICv8 | TICv8 |
| 5512 | — | 0.98 | — | — | — | 456.1 | ExoFOP | TICv8 |
| 5558 | 0.79 | 0.97 | — | — | — | 456.1 | Christiansen et al. 2022 | TICv8 |