Temperature
4079 K
4079 to 4312.9
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Stellar HostProfile
K2-148
Unclassified star • 124.5 pc
Records
4
literature rows
Planets
3
system count
References
5
distinct source labels
TIC: TIC 423358488
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: Hirano et al. 2018 • System source: TICv8
Mass
0.65 Msun
0.64 to 0.65
Radius
0.63 Rsun
0.37 to 0.67
Luminosity
-1.00 log(Lsun)
-1.01 to -0.94
Distance
124.5 pc
single adopted value
Planets
3
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.63 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-148
0.63 R☉
System Layout
Known planets
3 planets linked to this host
K2-148: A Cool Star with Three Small Worlds
K2-148 is a star located 406 light-years away, and it hosts three known planets. The star has a reported mass of 0.65 solar masses and a radius of 0.632 solar radii, both smaller than the Sun's. Its temperature is 4080 K, which is cooler than the Sun's.
All three planets were discovered in 2018 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. Repeated dips help establish orbital periods.
K2-148 b is classified as Earth-like, with a radius of 1.33 Earth radii that is larger than Earth's. Among the listed planets it has the shortest year, an orbital period of 4.38 days, and the smallest radius.
K2-148 c and K2-148 d are both classified as Super-Earths. K2-148 c has a radius of 1.73 Earth radii, larger than Earth's, and among the listed planets the largest radius and the second-shortest year, at 6.92 days. K2-148 d has a radius of 1.64 Earth radii, larger than Earth's, and among the listed planets the second-smallest radius and the longest year, at 9.76 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
4
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 |
|---|---|---|---|---|---|---|---|---|
| — | — | 0.37 | — | — | — | 124.5 | Kruse et al. 2019 | TICv8 |
| 4081 | 0.64 | 0.67 | — | -0.94 | — | 124.5 | TICv8 | TICv8 |
| 4079 | 0.65 | 0.63 | — | -1.00 | — | 124.5 | Hirano et al. 2018 | TICv8 |
| 4312.9 | — | 0.56 | — | -1.01 | — | 124.5 | Gaia DR2 | TICv8 |