Temperature
5994 K
5797 to 6010
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Stellar HostProfile
K2-331
Unclassified star • 211.4 pc
Records
3
literature rows
Planets
2
system count
References
4
distinct source labels
TIC: TIC 46296576
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: de Leon et al. 2021 • System source: TICv8
Mass
1.10 Msun
1.04 to 1.10
Radius
1.06 Rsun
1.04 to 1.06
Distance
211.4 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.06 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-331
1.06 R☉
System Layout
Known planets
2 planets linked to this host
K2-331: A Distant Star With Two Known Planets
K2-331 is a star located 690 light-years away. It has 1.1 solar masses, a radius of 1.06 solar radii, and a temperature of 5990 K, making it larger, wider, and hotter than the Sun by reported estimates. Two planets are known to orbit this host.
K2-331 b is a Super-Earth discovered by transit in 2021. It completes an orbit in 9.4 days and has a radius of 1.79 Earth radii, larger than Earth's. Its year is the shortest among the listed planets, and its radius is the smallest.
K2-331 c is a Neptune-like planet, also found by transit in 2021. Its orbital period is 23 days, and its radius is 2.72 Earth radii, larger than Earth's. Among the listed planets, it has the longest year and the largest radius.
A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. Repeated dips help establish orbital periods.
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Stellar refs
3
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositystable
Surface Gravitydisputed
Metallicitystable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5994 | 1.10 | 1.06 | — | — | — | 211.4 | de Leon et al. 2021 | TICv8 |
| 5797 | 1.04 | 1.06 | — | 0.06 | — | 211.4 | TICv8 | TICv8 |
| 6010 | — | 1.04 | — | — | — | 211.4 | Yu et al. 2018 | TICv8 |