Temperature
5550 K
5019.6 to 5550
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Stellar HostProfile
Kepler-1139
Unclassified star • 495.2 pc
Records
14
literature rows
Planets
1
system count
References
15
distinct source labels
TIC: TIC 121458495
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
0.94 Msun
0.83 to 0.94
Radius
0.91 Rsun
0.73 to 0.91
Age
4.47 Gyr
0.50 to 4.47
Distance
495.2 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.91 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-1139
0.91 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-1139 b
Transit
◌
Discovery
2016
Period
0.81 days
Radius
1.19 R⊕
Mass
—
Eq. Temp
—
Kepler-1139 and Its Earth-like Planet
Kepler-1139 is a star 1610 light-years away with one known planet. The host star is 4.47 billion years old and has a mass of 0.94 solar masses and a radius of 0.91 solar radii. Its reported mass estimate is smaller than the Sun's, and its temperature of 5550 K is cooler than the Sun's.
The sole listed planet is Kepler-1139 b, an Earth-like planet discovered by transit in 2016. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. Kepler-1139 b has an orbital period of 0.813 days and a radius of 1.19 Earth radii, larger than Earth's. Its classification as Earth-like means it stays within 1.5 times Earth's radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
14
Stellar refs
14
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 |
|---|---|---|---|---|---|---|---|---|
| 5310 | — | 0.81 | — | — | — | 495.2 | Berger et al. 2018 | TICv8 |
| — | — | — | — | — | — | 495.2 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5285 | 0.88 | 0.78 | — | — | — | 495.2 | Q1-Q16 KOI Table | TICv8 |
| 5237 | 0.91 | 0.89 | — | — | — | 495.2 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5285 | 0.88 | 0.78 | — | — | — | 495.2 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5019.6 | — | 0.90 | — | -0.34 | — | 495.2 | Gaia DR2 | TICv8 |
| 5123 | 0.84 | 0.74 | — | — | — | 495.2 | Batalha et al. 2013 | TICv8 |
| 5550 | 0.94 | 0.91 | 4.47 | — | — | 495.2 | Morton et al. 2016 | TICv8 |
| 5123 | — | 0.74 | — | — | — | 495.2 | Latham et al. 2005 | TICv8 |
| 5178.8 | 0.88 | 0.88 | — | -0.30 | — | 495.2 | TICv8 | TICv8 |
| 5310 | 0.93 | 0.80 | 0.50 | — | — | 495.2 | Fulton & Petigura 2018 | TICv8 |
| 5285 | 0.88 | 0.78 | — | — | — | 495.2 | Q1-Q12 KOI Table | TICv8 |
| 5123 | — | 0.74 | — | — | — | 495.2 | Q1-Q6 KOI Table | TICv8 |
| 5253 | 0.83 | 0.73 | 0.70 | — | — | 495.2 | Q1-Q8 KOI Table | TICv8 |