Temperature
5680 K
5615 to 6177
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Stellar HostProfile
K2-12
Unclassified star • 326.4 pc
Records
9
literature rows
Planets
1
system count
References
10
distinct source labels
TIC: TIC 396972464
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: TICv8 • System source: TICv8
Mass
1.01 Msun
0.94 to 1.18
Radius
1.19 Rsun
0.92 to 1.31
Luminosity
0.12 log(Lsun)
0.07 to 0.12
Distance
326.4 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.19 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-12
1.19 R☉
System Layout
Known planets
1 planets linked to this host
K2-12 b
Transit
◌
Discovery
2015
Period
8.28 days
Radius
2.44 R⊕
Mass
5.20 M⊕
Eq. Temp
1026 K
K2-12 and Its Super-Earth
K2-12 is a star located 1060 light-years away. Its spectral type is F9, placing it in the temperature class just cooler than the Sun's G type, and it has a mass of 1.01 solar masses and a radius of 1.19 solar radii. Its temperature is 5680 K. The star's reported radius estimate is larger than the Sun's. One planet orbits this host.
That planet is K2-12 b, classified as a Super-Earth, a size class reaching 2.5 times Earth's radius. Its radius is 2.44 Earth radii, and its reported radius estimate is larger than Earth's. Its mass is a reported upper limit of 5.2 Earth masses. The planet was discovered by transit, the dimming of a star's light when a planet crosses in front of it from our viewpoint. Its orbital period is 8.28 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
9
Stellar refs
9
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5663 | 0.94 | 1.01 | — | — | — | 326.4 | Mayo et al. 2018 | TICv8 |
| 5779 | — | 1.08 | — | 0.07 | — | 326.4 | Gaia DR2 | TICv8 |
| 5672 | 0.96 | 1.12 | 8.90 | — | — | 326.4 | Bonomo et al. 2023 | TICv8 |
| 5680 | 1.01 | 1.19 | — | 0.12 | — | 326.4 | TICv8 | TICv8 |
| 6177 | 1.18 | 1.31 | — | — | — | 326.4 | Crossfield et al. 2016 | TICv8 |
| — | — | 1.08 | — | — | — | 326.4 | Kruse et al. 2019 | TICv8 |
| — | — | — | — | — | F9 | 326.4 | Luo et al. 2018 | TICv8 |
| 5615 | — | 0.92 | — | — | — | 326.4 | Vanderburg et al. 2016 | TICv8 |
| 5800 | 1.01 | 1.01 | — | — | — | 326.4 | Montet et al. 2015 | TICv8 |