Temperature
4679 K
4362 to 4760.9
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Stellar HostProfile
Kepler-1157
Unclassified star • 342.1 pc
Records
13
literature rows
Planets
1
system count
References
14
distinct source labels
TIC: TIC 164460347
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
0.76 Msun
0.58 to 0.76
Radius
0.71 Rsun
0.55 to 0.75
Age
3.39 Gyr
3.39 to 13.80
Distance
342.1 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.71 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
Kepler-1157
0.71 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-1157 b
Transit
◌
Discovery
2016
Period
4.46 days
Radius
1.09 R⊕
Mass
—
Eq. Temp
—
Kepler-1157 b: A Close-In Earth-Sized World
Kepler-1157 is a star 1120 light-years away with one known planet. The host star has a mass of 0.76 solar masses and a radius of 0.71 solar radii, making it smaller than the Sun in both respects. Its temperature of 4680 K is cooler than the Sun's, and its age is 3.39 billion years.
The planet Kepler-1157 b was discovered in 2016 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. Repeated dips help establish orbital periods, and this planet completes one orbit every 4.46 days. Its radius is 1.09 Earth radii, placing it in the Earth-like size class, which covers planets up to 1.5 times Earth's radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
13
Stellar refs
13
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 |
|---|---|---|---|---|---|---|---|---|
| 4544 | 0.64 | 0.61 | 13.80 | — | — | 342.1 | Q1-Q8 KOI Table | TICv8 |
| 4487 | 0.60 | 0.61 | — | — | — | 342.1 | Q1-Q17 DR24 KOI Table | TICv8 |
| 4679 | 0.76 | 0.71 | 3.39 | — | — | 342.1 | Morton et al. 2016 | TICv8 |
| 4487 | 0.60 | 0.61 | — | — | — | 342.1 | Q1-Q17 DR25 KOI Table | TICv8 |
| 4487 | 0.60 | 0.61 | — | — | — | 342.1 | Q1-Q16 KOI Table | TICv8 |
| — | — | — | — | — | — | 342.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 4362 | — | 0.67 | — | — | — | 342.1 | Latham et al. 2005 | TICv8 |
| 4487 | 0.60 | 0.61 | — | — | — | 342.1 | Q1-Q12 KOI Table | TICv8 |
| 4760.9 | — | 0.63 | — | -0.73 | — | 342.1 | Gaia DR2 | TICv8 |
| 4362 | — | 0.55 | — | — | — | 342.1 | Q1-Q6 KOI Table | TICv8 |
| 4362 | 0.58 | 0.55 | — | — | — | 342.1 | Batalha et al. 2013 | TICv8 |
| 4487 | — | 0.72 | — | — | — | 342.1 | Berger et al. 2018 | TICv8 |
| 4533 | 0.71 | 0.75 | — | -0.68 | — | 342.1 | TICv8 | TICv8 |