Temperature
6068 K
5761.3 to 6190
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Stellar HostProfile
Kepler-557
Unclassified star • 2097.1 pc
Records
13
literature rows
Planets
1
system count
References
14
distinct source labels
TIC: TIC 138222081
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
1.11 Msun
1.00 to 1.11
Radius
1.16 Rsun
1.02 to 2.28
Age
3.24 Gyr
single adopted value
Distance
2097.1 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.16 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-557
1.16 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-557 b
Transit
◌
Discovery
2016
Period
3.71 days
Radius
2.67 R⊕
Mass
—
Eq. Temp
—
Kepler-557 and Its Neptune-Like Planet
Kepler-557 is a star 6840 light-years away with one known planet. The host star is estimated to be 3.24 billion years old, with a mass of 1.11 solar masses and a radius of 1.16 solar radii. Its temperature is 6070 K, and its reported mass estimate is larger than the Sun's, while its reported temperature is hotter than the Sun's.
The only listed planet is Kepler-557 b, a Neptune-like world 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-557 b orbits its star every 3.71 days and has a radius of 2.67 Earth radii, a reported radius estimate larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
13
Stellar refs
13
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5935 | 1.09 | 1.08 | — | — | — | 2097.1 | Q1-Q8 KOI Table | TICv8 |
| 6187 | 1.00 | 1.03 | — | — | — | 2097.1 | Q1-Q17 DR24 KOI Table | TICv8 |
| 6187 | 1.00 | 1.03 | — | — | — | 2097.1 | Q1-Q16 KOI Table | TICv8 |
| 6187 | 1.00 | 1.03 | — | — | — | 2097.1 | Q1-Q17 DR25 KOI Table | TICv8 |
| 6190 | — | 2.20 | — | — | — | 2097.1 | Berger et al. 2018 | TICv8 |
| 5935 | — | 1.02 | — | — | — | 2097.1 | Q1-Q6 KOI Table | TICv8 |
| — | — | — | — | — | — | 2097.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5838.4 | 1.05 | 2.26 | — | 0.73 | — | 2097.1 | TICv8 | TICv8 |
| 6187 | 1.00 | 1.03 | — | — | — | 2097.1 | Q1-Q12 KOI Table | TICv8 |
| 5935 | — | 1.08 | — | — | — | 2097.1 | Latham et al. 2005 | TICv8 |
| 6068 | 1.11 | 1.16 | 3.24 | — | — | 2097.1 | Morton et al. 2016 | TICv8 |
| 5935 | — | 1.02 | — | — | — | 2097.1 | Batalha et al. 2013 | TICv8 |
| 5761.3 | — | 2.28 | — | 0.71 | — | 2097.1 | Gaia DR2 | TICv8 |