Temperature
5773 K
5353 to 5773
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Stellar HostProfile
Kepler-857
Unclassified star • 983.5 pc
Records
13
literature rows
Planets
1
system count
References
14
distinct source labels
TIC: TIC 271158887
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
0.99 Msun
0.88 to 0.99
Radius
0.99 Rsun
0.56 to 1.00
Age
4.27 Gyr
0.50 to 4.27
Distance
983.5 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.99 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-857
0.99 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-857 b
Transit
◌
Discovery
2016
Period
85.35 days
Radius
6.80 R⊕
Mass
—
Eq. Temp
—
Kepler-857 and Its Jupiter-Like Planet
Kepler-857 is a single-star system 3210 light-years away. Its host star has a mass of 0.99 solar masses, a radius of 0.99 solar radii, a temperature of 5770 K, and an age of 4.27 billion years. One planet orbits this star.
That planet is Kepler-857 b, a Jupiter-like world discovered in 2016 by the transit method, which detects the small dip in a star's brightness when a planet crosses in front of it from our viewpoint. Kepler-857 b completes an orbit every 85.4 days and has a radius of 6.8 Earth radii. That radius estimate is larger than Earth's.
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 |
|---|---|---|---|---|---|---|---|---|
| 5584 | 0.97 | 0.94 | — | — | — | 983.5 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5353 | — | 1.00 | — | -0.13 | — | 983.5 | Gaia DR2 | TICv8 |
| 5635 | 0.88 | 0.80 | — | — | — | 983.5 | Q1-Q16 KOI Table | TICv8 |
| 5635 | 0.88 | 0.80 | — | — | — | 983.5 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5455 | — | 0.72 | — | — | — | 983.5 | Q1-Q6 KOI Table | TICv8 |
| 5612 | 0.99 | 0.97 | — | -0.07 | — | 983.5 | TICv8 | TICv8 |
| 5455 | — | 0.72 | — | — | — | 983.5 | Batalha et al. 2013 | TICv8 |
| 5455 | — | 0.56 | — | — | — | 983.5 | Latham et al. 2005 | TICv8 |
| 5582 | — | 0.96 | — | — | — | 983.5 | Berger et al. 2018 | TICv8 |
| 5773 | 0.99 | 0.99 | 4.27 | — | — | 983.5 | Morton et al. 2016 | TICv8 |
| 5638 | 0.94 | 0.83 | 0.50 | — | — | 983.5 | Q1-Q8 KOI Table | TICv8 |
| 5635 | 0.88 | 0.80 | — | — | — | 983.5 | Q1-Q12 KOI Table | TICv8 |
| — | — | — | — | — | — | 983.5 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |