Temperature
5575 K
5016 to 5581
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Stellar HostProfile
K2-30
G • 333.0 pc
Records
10
literature rows
Planets
1
system count
References
11
distinct source labels
TIC: TIC 26017005
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: Brahm et al. 2016 • System source: TICv8
Mass
0.92 Msun
0.88 to 0.98
Radius
0.84 Rsun
0.84 to 1.06
Age
2.20 Gyr
2.20 to 3.90
Luminosity
-0.27 log(Lsun)
-0.32 to -0.11
Distance
333.0 pc
single adopted value
Spectral Type
G
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.84 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-30
0.84 R☉
System Layout
Known planets
1 planets linked to this host
K2-30 b
Transit
◌
Discovery
2016
Period
4.10 days
Radius
11.65 R⊕
Mass
184.0 M⊕
Eq. Temp
1092 K
K2-30 b: A Jupiter-like World Around a Sun-like Star
K2-30 is a G-type star located 1090 light-years away, with a spectral class suggesting it is Sun-like in character. It has one known planet. The star is estimated to be 2.2 billion years old, with a mass of 0.917 solar masses and a radius of 0.839 solar radii, making it somewhat smaller than the Sun in both respects. Its temperature of 5580 K is cooler than the Sun's.
The sole planet, K2-30 b, was discovered in 2016 by the transit method, in which a planet passing in front of its star from our viewpoint causes a small dip in observed brightness. It is classified as Jupiter-like, with a radius of 11.6 Earth radii, well above the threshold that defines this size class. Its mass is 184 Earth masses, and its mean density is 0.642 g/cm³, 0.117 times Earth's. K2-30 b completes an orbit every 4.1 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
10
Stellar refs
10
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 333.0 | Barros et al. 2016 | TICv8 |
| 5425 | 0.90 | 0.84 | 3.90 | -0.26 | G6 V | 333.0 | Johnson et al. 2016 | TICv8 |
| — | — | 0.92 | — | — | — | 333.0 | Kruse et al. 2019 | TICv8 |
| 5574 | 0.97 | 0.91 | — | — | — | 333.0 | Mayo et al. 2018 | TICv8 |
| 5581 | 0.98 | 0.94 | — | -0.11 | G8 V | 333.0 | Lillo-Box et al. 2016 | TICv8 |
| 5198 | 0.88 | 1.06 | — | -0.13 | — | 333.0 | TICv8 | TICv8 |
| 5567 | 0.93 | 0.92 | — | — | — | 333.0 | Crossfield et al. 2016 | TICv8 |
| 5198 | — | 1.06 | — | — | — | 333.0 | ExoFOP | TICv8 |
| 5016 | — | 0.92 | — | -0.32 | — | 333.0 | Gaia DR2 | TICv8 |
| 5575 | 0.92 | 0.84 | 2.20 | -0.27 | G | 333.0 | Brahm et al. 2016 | TICv8 |