Temperature
5600 K
5600 to 5878
←Back to Stellar Hosts
Stellar HostProfile
WASP-57
G6 • 398.3 pc
Records
6
literature rows
Planets
1
system count
References
7
distinct source labels
TIC: TIC 175772482
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: Faedi et al. 2013 • System source: TICv8
Mass
0.95 Msun
0.89 to 1.06
Radius
0.84 Rsun
0.84 to 1.05
Age
2.60 Gyr
2.60 to 7
Distance
398.3 pc
single adopted value
Spectral Type
G6
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.84 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
WASP-57
0.84 R☉
System Layout
Known planets
1 planets linked to this host
WASP-57 b
Transit
◌
Discovery
2012
Period
2.84 days
Radius
11.77 R⊕
Mass
204.7 M⊕
Eq. Temp
1338 K
WASP-57 and Its Lone Planet
WASP-57 is a G6 star located 1300 light-years away. Its reported mass is 0.954 solar masses and its radius is 0.836 solar radii, both smaller than the Sun's corresponding values, and its temperature of 5600 K is cooler than the Sun's. The star's age is 2.6 billion years. One planet has been found orbiting it.
That planet is WASP-57 b, a Jupiter-like world discovered by the transit method in 2012. It orbits its star every 2.84 days. Its mass is 205 Earth masses, and its radius of 11.8 Earth radii is larger than Earth's. Both its mass and radius estimates exceed Earth's, and its mean density is 0.692 g/cm³, 0.126 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
6
Stellar refs
6
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitystable
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5878 | 1.06 | 1.03 | — | 0.05 | — | 398.3 | TICv8 | TICv8 |
| 5878 | — | 1.03 | — | — | — | 398.3 | ExoFOP | TICv8 |
| 5628.0 | — | 1.05 | — | -5.09e-3 | — | 398.3 | Gaia DR2 | TICv8 |
| 5600 | 0.95 | 0.84 | 2.60 | — | G6 | 398.3 | Faedi et al. 2013 | TICv8 |
| 5600 | 0.89 | 0.93 | — | — | — | 398.3 | Southworth et al. 2015 | TICv8 |
| 5600 | 0.89 | 0.93 | 7 | — | — | 398.3 | Bonomo et al. 2017 | TICv8 |