Temperature
5547 K
5389 to 5650
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Stellar HostProfile
Kepler-538
Unclassified star • 156.0 pc
Records
19
literature rows
Planets
1
system count
References
18
distinct source labels
TIC: TIC 28227113
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. 2019 • System source: TICv8
Mass
0.89 Msun
0.85 to 0.96
Radius
0.87 Rsun
0.85 to 0.92
Age
5.30 Gyr
2.95 to 9.60
Distance
156.0 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.87 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-538
0.87 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-538 b
Transit
◌
Discovery
2016
Period
81.74 days
Radius
2.21 R⊕
Mass
12.90 M⊕
Eq. Temp
417 K
Kepler-538: A Cooler, Smaller Star with a Super-Earth
Kepler-538 is a star located 509 light-years away, and one planet orbits it. The host star is estimated to be 5.3 billion years old, with a mass of 0.892 solar masses and a radius of 0.872 solar radii. Its reported temperature is 5550 K, cooler than the Sun's, while its mass and radius estimates are both smaller than the Sun's.
The planet Kepler-538 b is classified as a Super-Earth, a size class that reaches up to 2.5 times Earth's radius. It was discovered in 2016 by the transit method, which detects the small dip in a star's brightness when a planet passes in front of it. The planet's radius is 2.22 Earth radii, larger than Earth's, and its mass is 12.9 Earth masses, also larger than Earth's. Its mean density is 6.54 g/cm³, 1.19 times Earth's. Kepler-538 b completes one orbit every 81.7 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
19
Stellar refs
17
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5498 | — | 0.86 | — | — | — | 156.0 | Berger et al. 2018 | TICv8 |
| 5451 | — | 0.87 | — | — | — | 156.0 | Q1-Q6 KOI Table | TICv8 |
| — | 0.88 | — | — | — | — | 156.0 | Weiss et al. 2024 | TICv8 |
| — | — | — | — | — | — | 156.0 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5564 | 0.88 | 0.85 | — | — | — | 156.0 | Q1-Q16 KOI Table | TICv8 |
| 5451 | 0.85 | 0.87 | 9.60 | — | — | 156.0 | Q1-Q8 KOI Table | TICv8 |
| 5451 | — | 0.87 | — | — | — | 156.0 | Batalha et al. 2013 | TICv8 |
| 5564 | 0.88 | 0.85 | — | — | — | 156.0 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5564 | 0.88 | 0.85 | — | — | — | 156.0 | Q1-Q12 KOI Table | TICv8 |
| 5547 | 0.89 | 0.87 | 5.30 | — | — | 156.0 | Mayo et al. 2019 | TICv8 |
| 5499 | 0.96 | 0.90 | — | -0.18 | — | 156.0 | TICv8 | TICv8 |
| 5559 | 0.88 | 0.87 | — | — | — | 156.0 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5389 | — | 0.86 | — | — | — | 156.0 | Latham et al. 2005 | TICv8 |
| 5399.3 | — | 0.92 | — | -0.19 | — | 156.0 | Gaia DR2 | TICv8 |
| 5650 | 0.96 | 0.90 | 2.95 | — | — | 156.0 | Morton et al. 2016 | TICv8 |
| — | — | — | — | — | — | 156.0 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5564 | 0.88 | 0.85 | — | — | — | 156.0 | Q1-Q16 KOI Table | TICv8 |
| 5534 | 0.89 | 0.87 | 5.30 | — | — | 156.0 | Bonomo et al. 2023 | TICv8 |
| 5498 | 0.88 | 0.86 | 5.37 | — | — | 156.0 | Fulton & Petigura 2018 | TICv8 |