Temperature
4893 K
4720 to 4893
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Stellar HostProfile
K2-68
Unclassified star • 168.7 pc
Records
7
literature rows
Planets
1
system count
References
7
distinct source labels
TIC: TIC 38258419
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: Mayo et al. 2018 • System source: TICv8
Mass
0.75 Msun
0.73 to 0.77
Radius
0.70 Rsun
0.66 to 0.72
Distance
168.7 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.70 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-68
0.70 R☉
System Layout
Known planets
1 planets linked to this host
K2-68 b
Transit
◌
Discovery
2016
Period
8.05 days
Radius
1.58 R⊕
Mass
—
Eq. Temp
—
K2-68 and Its Super-Earth
K2-68 is a star 550 light-years away with one known planet. The host star has a reported mass estimate of 0.751 solar masses and a radius estimate of 0.702 solar radii, both smaller than the Sun's. Its reported temperature is 4890 K, cooler than the Sun's.
The planet K2-68 b is a Super-Earth discovered by transit in 2016. 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. K2-68 b orbits every 8.05 days, and its reported radius estimate is 1.58 Earth radii, larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
6
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitystable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4720 | — | 0.72 | — | — | — | 168.7 | Vanderburg et al. 2016 | TICv8 |
| 4840.5 | — | 0.66 | — | -0.67 | — | 168.7 | Gaia DR2 | TICv8 |
| — | — | 0.66 | — | — | — | 168.7 | Kruse et al. 2019 | TICv8 |
| 4788 | 0.77 | 0.69 | — | -0.64 | — | 168.7 | TICv8 | TICv8 |
| — | — | 0.66 | — | — | — | 168.7 | Kruse et al. 2019 | TICv8 |
| 4746 | 0.73 | 0.68 | — | — | — | 168.7 | Crossfield et al. 2016 | TICv8 |
| 4893 | 0.75 | 0.70 | — | — | — | 168.7 | Mayo et al. 2018 | TICv8 |