Temperature
3720 K
3720 to 4094.4
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Stellar HostProfile
K2-153
M3.0 V • 143.1 pc
Records
4
literature rows
Planets
1
system count
References
5
distinct source labels
TIC: TIC 397056271
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
0.51 Msun
0.51 to 0.55
Radius
0.49 Rsun
0.49 to 0.54
Luminosity
-1.37 log(Lsun)
-1.37 to -1.27
Distance
143.1 pc
single adopted value
Spectral Type
M3.0 V
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.49 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-153
0.49 R☉
System Layout
Known planets
1 planets linked to this host
K2-153 b
Transit
◌
Discovery
2018
Period
7.52 days
Radius
2 R⊕
Mass
—
Eq. Temp
497 K
K2-153 b: A Super-Earth Orbiting a Cool Red Dwarf
K2-153 is an M3.0 V star, a small, cool red dwarf, located 467 light-years away. It has one known planet. The star's reported mass estimate is 0.512 solar masses, its reported radius estimate is 0.495 solar radii, and its temperature is 3720 K. Each of these is smaller or cooler than the corresponding value for the Sun.
The planet K2-153 b is classified as a Super-Earth and was discovered by the transit method in 2018. Its orbital period is 7.52 days, and its radius is 2 Earth radii, larger than Earth's.
A Super-Earth is a size class: such a planet reaches 2.5 times Earth's radius. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
4
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 3720 | 0.51 | 0.49 | — | -1.37 | M3.0 V | 143.1 | Hirano et al. 2018 | TICv8 |
| 3845 | 0.55 | 0.53 | — | — | — | 143.1 | Livingston et al. 2018 | TICv8 |
| 4094.4 | — | — | — | — | — | 143.1 | Gaia DR2 | TICv8 |
| 3800 | 0.53 | 0.54 | — | -1.27 | — | 143.1 | TICv8 | TICv8 |