Temperature
5942 K
5902.7 to 6101
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Stellar HostProfile
K2-222
G0 • 101.3 pc
Records
9
literature rows
Planets
1
system count
References
10
distinct source labels
TIC: TIC 257774438
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: Nava et al. 2022 • System source: TICv8
Mass
0.94 Msun
0.92 to 1.15
Radius
1.07 Rsun
0.96 to 1.12
Age
7.10 Gyr
single adopted value
Luminosity
0.13 log(Lsun)
0.13 to 0.15
Distance
101.3 pc
single adopted value
Spectral Type
G0
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.07 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-222
1.07 R☉
System Layout
Known planets
1 planets linked to this host
K2-222 b
Transit
◌
Discovery
2018
Period
15.39 days
Radius
2.27 R⊕
Mass
7.50 M⊕
Eq. Temp
803 K
K2-222 b: A Super-Earth Orbiting a Sun-Like Star
K2-222 is a G0 star located 330 light-years away, with a mass of 0.94 solar masses and a radius of 1.07 solar radii. Its temperature is 5940 K, and it is 7.1 billion years old. One planet orbits this host.
K2-222 b is a Super-Earth discovered by transit in 2018. Its radius is 2.28 Earth radii, larger than Earth's, and its mass is 7.5 Earth masses, also larger than Earth's. The planet completes an orbit every 15.4 days. Its mean density is 3.51 g/cm³, 0.637 times Earth's. The star's reported temperature is hotter than the Sun's, while its mass is smaller and its radius larger than the Sun's.
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 |
|---|---|---|---|---|---|---|---|---|
| 5942 | 0.94 | 1.07 | 7.10 | 0.13 | G0 | 101.3 | Nava et al. 2022 | TICv8 |
| 5961 | 0.92 | 1.09 | — | — | — | 101.3 | Howard et al. 2025 | TICv8 |
| 5902.7 | — | 1.12 | — | 0.14 | — | 101.3 | Gaia DR2 | TICv8 |
| 6101 | — | 1.06 | — | — | — | 101.3 | ExoFOP | TICv8 |
| 5942 | 0.99 | 1.11 | 7.10 | — | — | 101.3 | Bonomo et al. 2023 | TICv8 |
| 6101 | 1.15 | 1.06 | — | 0.15 | — | 101.3 | TICv8 | TICv8 |
| — | — | 0.96 | — | — | — | 101.3 | Petigura et al. 2018 | TICv8 |
| 6058 | 1 | 1.09 | — | — | — | 101.3 | Livingston et al. 2018 | TICv8 |
| 5934 | 0.95 | 1.04 | — | — | — | 101.3 | Mayo et al. 2018 | TICv8 |