Temperature
5263 K
4555 to 5269
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Stellar HostProfile
K2-53
Unclassified star • 138.0 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
TIC: TIC 49652731
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: Livingston et al. 2019 • System source: TICv8
Mass
0.85 Msun
0.72 to 0.85
Radius
0.81 Rsun
0.71 to 0.85
Distance
138.0 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.81 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-53
0.81 R☉
System Layout
Known planets
1 planets linked to this host
K2-53 b
Transit
◌
Discovery
2016
Period
12.21 days
Radius
2.60 R⊕
Mass
—
Eq. Temp
665 K
K2-53 and Its Neptune-like Planet
K2-53 is a single-star system 450 light-years away. Its star has a reported mass estimate of 0.851 solar masses, a reported radius estimate of 0.807 solar radii, and a temperature of 5260 K, all smaller or cooler than the Sun. One planet is known to orbit this host.
That planet is K2-53 b, a Neptune-like world discovered by transit in 2016. With a radius of 2.6 Earth radii, it is larger than Earth, and it completes an orbit every 12.2 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
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 |
|---|---|---|---|---|---|---|---|---|
| 4555 | 0.72 | 0.82 | — | -0.58 | — | 138.0 | TICv8 | TICv8 |
| 5269 | 0.83 | 0.85 | — | — | — | 138.0 | Crossfield et al. 2016 | TICv8 |
| 4684 | — | 0.72 | — | — | — | 138.0 | Vanderburg et al. 2016 | TICv8 |
| 4749.4 | — | 0.71 | — | -0.63 | — | 138.0 | Gaia DR2 | TICv8 |
| — | — | 0.71 | — | — | — | 138.0 | Kruse et al. 2019 | TICv8 |
| 5263 | 0.85 | 0.81 | — | — | — | 138.0 | Livingston et al. 2019 | TICv8 |
| — | — | — | — | — | — | 138.0 | Barros et al. 2016 | TICv8 |