Temperature
5623 K
5435.2 to 5901
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Stellar HostProfile
Kepler-38
G4 V • 1174.6 pc
Records
11
literature rows
Planets
1
system count
References
12
distinct source labels
TIC: TIC 158316612
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: Orosz et al. 2012 • System source: TICv8
Mass
0.94 Msun
0.94 to 1.04
Radius
1.75 Rsun
0.95 to 1.99
Age
10 Gyr
3.40 to 10
Distance
1174.6 pc
single adopted value
Spectral Type
G4 V
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.75 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-38
1.75 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-38 b
Transit
◌
Discovery
2012
Period
105.6 days
Radius
4.30 R⊕
Mass
122 M⊕
Eq. Temp
475 K
Kepler-38 and Its Circumbinary Planet
Kepler-38 is a binary star system 3830 light-years away whose host star has one known planet. The host is a G4 V star, a G-type main-sequence dwarf, with an age of 10 billion years. Its mass is 0.941 solar masses, its radius is 1.75 solar radii, and its temperature is 5620 K. The star's reported mass estimate is smaller than the Sun's, its reported radius estimate is larger than the Sun's, and its reported temperature is cooler than the Sun's.
The system's planet is Kepler-38 b, a Jupiter-like planet discovered by transit in 2012. It is circumbinary, orbiting both stars of the binary system rather than one star alone. Kepler-38 b has an orbital period of 106 days and a radius of 4.3 Earth radii, larger than Earth's. Its mass is reported as an upper limit of 122 Earth masses.
Provenance
Underlying measurements and references
Evidence Summary
Rows
11
Stellar refs
11
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5690 | 1.01 | 1.84 | — | 0.50 | — | 1174.6 | TICv8 | TICv8 |
| 5623 | 1.04 | 1.84 | — | — | — | 1174.6 | Q1-Q12 KOI Table | TICv8 |
| 5901 | 0.98 | 0.95 | 3.40 | — | — | 1174.6 | Q1-Q8 KOI Table | TICv8 |
| 5623 | 0.94 | 1.75 | 10 | — | G4 V | 1174.6 | Orosz et al. 2012 | TICv8 |
| — | — | — | — | — | — | 1174.6 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5435.2 | — | 1.99 | — | 0.49 | — | 1174.6 | Gaia DR2 | TICv8 |
| 5623 | 1.04 | 1.84 | — | — | — | 1174.6 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5640 | — | 0.99 | — | — | — | 1174.6 | Latham et al. 2005 | TICv8 |
| 5623 | — | 1.86 | — | — | — | 1174.6 | Berger et al. 2018 | TICv8 |
| 5623 | 1.04 | 1.84 | — | — | — | 1174.6 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5623 | 1.04 | 1.84 | — | — | — | 1174.6 | Q1-Q16 KOI Table | TICv8 |