Temperature
4525.6 K
4216 to 4525.6
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Stellar HostProfile
Kepler-1939
Unclassified star • 189.8 pc
Records
12
literature rows
Planets
1
system count
References
8
distinct source labels
TIC: TIC 120578688
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: TICv8 • System source: TICv8
Mass
0.71 Msun
0.64 to 0.71
Radius
0.64 Rsun
0.56 to 0.64
Luminosity
-0.81 log(Lsun)
single adopted value
Distance
189.8 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.64 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
Kepler-1939
0.64 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-1939 b
Transit
◌
Discovery
2021
Period
2.79 days
Radius
1.16 R⊕
Mass
—
Eq. Temp
—
Kepler-1939 b: A Close-In Earth-Sized World
Kepler-1939 is a single star located 619 light-years from Earth, with a mass of 0.712 solar masses and a radius of 0.642 solar radii. Its reported temperature is 4530 K. One planet orbits this host.
That planet, Kepler-1939 b, was discovered in 2021 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. Kepler-1939 b completes an orbit every 2.79 days and has a radius of 1.16 Earth radii. Its size classification is Earth-like, a class that includes planets with radii up to 1.5 times Earth's.
The star's reported mass estimate is smaller than the Sun's, and its reported radius estimate is also smaller than the Sun's. Kepler-1939 b's reported radius estimate is larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
12
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositystable
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4358 | 0.64 | 0.62 | — | — | — | 189.8 | Q1-Q12 KOI Table | TICv8 |
| — | — | — | — | — | — | 189.8 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| — | — | — | — | — | — | 189.8 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 4525.6 | 0.71 | 0.64 | — | -0.81 | — | 189.8 | TICv8 | TICv8 |
| 4358 | 0.64 | 0.62 | — | — | — | 189.8 | Q1-Q16 KOI Table | TICv8 |
| 4216 | — | 0.56 | — | — | — | 189.8 | Latham et al. 2005 | TICv8 |
| 4358 | 0.64 | 0.62 | — | — | — | 189.8 | Q1-Q12 KOI Table | TICv8 |
| 4353 | 0.65 | 0.60 | — | — | — | 189.8 | Q1-Q17 DR25 KOI Table | TICv8 |
| 4353 | 0.65 | 0.60 | — | — | — | 189.8 | Q1-Q17 DR25 KOI Table | TICv8 |
| 4358 | 0.64 | 0.62 | — | — | — | 189.8 | Q1-Q16 KOI Table | TICv8 |
| 4358 | 0.64 | 0.62 | — | — | — | 189.8 | Q1-Q17 DR24 KOI Table | TICv8 |
| 4358 | 0.64 | 0.62 | — | — | — | 189.8 | Q1-Q17 DR24 KOI Table | TICv8 |