Temperature
3498 K
3360.5 to 4103.9
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Stellar HostProfile
K2-72
Unclassified star • 66.43 pc
Records
5
literature rows
Planets
4
system count
References
6
distinct source labels
TIC: TIC 38337202
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
0.31 Msun
0.22 to 0.31
Radius
0.33 Rsun
0.23 to 0.43
Luminosity
-1.84 log(Lsun)
single adopted value
Distance
66.43 pc
single adopted value
Planets
4
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.33 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-72
0.33 R☉
System Layout
Known planets
4 planets linked to this host
K2-72: A Small Star With Four Earth-Like Planets
K2-72 is a star located 217 light-years away. It has 0.309 solar masses, 0.329 solar radii, and a temperature of 3500 K, making its reported mass and radius estimates smaller than the Sun's and its reported temperature cooler than the Sun's. Four planets are known to orbit this star.
All four planets are classified as Earth-like and were discovered by transit in 2016. K2-72 b has an orbital period of 5.58 days and a radius of 1.08 Earth radii. K2-72 c has an orbital period of 15.2 days and a radius of 1.16 Earth radii. K2-72 d has an orbital period of 7.76 days and a radius of 1.01 Earth radii. K2-72 e has an orbital period of 24.2 days and a radius of 1.29 Earth radii.
Among the listed planets, K2-72 b has the shortest year and the second-smallest radius, while K2-72 e has the longest year and the largest radius. K2-72 d has the second-shortest year and the smallest radius, and K2-72 c has the second-longest year and the second-largest radius. The reported radius estimates for K2-72 c and K2-72 e are larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Stellar refs
5
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositystable
Surface Gravitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 3360.5 | 0.27 | 0.33 | — | — | — | 66.43 | Dressing et al. 2017 | TICv8 |
| 4103.9 | — | — | — | — | — | 66.43 | Gaia DR2 | TICv8 |
| 3497 | 0.22 | 0.23 | — | — | — | 66.43 | Crossfield et al. 2016 | TICv8 |
| 3498 | 0.31 | 0.33 | — | -1.84 | — | 66.43 | TICv8 | TICv8 |
| 3563 | — | 0.43 | — | — | — | 66.43 | Vanderburg et al. 2016 | TICv8 |