Temperature
5327 K
5127.3 to 5493
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Stellar HostProfile
Kepler-738
Unclassified star • 1113.7 pc
Records
11
literature rows
Planets
1
system count
References
12
distinct source labels
TIC: TIC 158490928
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: Morton et al. 2016 • System source: TICv8
Mass
0.86 Msun
0.82 to 0.90
Radius
0.82 Rsun
0.52 to 0.99
Age
4.57 Gyr
0.50 to 4.57
Distance
1113.7 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.82 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-738
0.82 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-738 b
Transit
◌
Discovery
2016
Period
24.59 days
Radius
2.50 R⊕
Mass
—
Eq. Temp
—
Kepler-738 and Its Neptune-like Planet
Kepler-738 is a star located 3630 light-years away, with a single known planet in its system. The host star is estimated to be 4.57 billion years old and has a mass of 0.86 solar masses, a radius of 0.82 solar radii, and a temperature of 5330 K. Its reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.
The one known planet, Kepler-738 b, was discovered by the transit method in 2016. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness; repeated dips help establish orbital periods. Kepler-738 b completes an orbit every 24.6 days and has a radius of 2.5 Earth radii, larger than Earth's. It is a Neptune-like planet, a size class that reaches 4 times Earth's radius.
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
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5468 | — | 0.91 | — | — | — | 1113.7 | Berger et al. 2018 | TICv8 |
| 5474 | 0.83 | 0.75 | — | — | — | 1113.7 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5493 | 0.90 | 0.79 | 0.50 | — | — | 1113.7 | Q1-Q8 KOI Table | TICv8 |
| 5465 | 0.82 | 0.75 | — | — | — | 1113.7 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5327 | 0.86 | 0.82 | 4.57 | — | — | 1113.7 | Morton et al. 2016 | TICv8 |
| 5465 | 0.82 | 0.75 | — | — | — | 1113.7 | Q1-Q12 KOI Table | TICv8 |
| — | — | — | — | — | — | 1113.7 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5298 | — | 0.52 | — | — | — | 1113.7 | Latham et al. 2005 | TICv8 |
| 5230.9 | 0.89 | 0.95 | — | -0.21 | — | 1113.7 | TICv8 | TICv8 |
| 5465 | 0.82 | 0.75 | — | — | — | 1113.7 | Q1-Q16 KOI Table | TICv8 |
| 5127.3 | — | 0.99 | — | -0.21 | — | 1113.7 | Gaia DR2 | TICv8 |