Temperature
5940 K
5775.7 to 5940
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Stellar HostProfile
WASP-20
F9 • 211.9 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
TIC: TIC 211438925
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: Anderson et al. 2015 • System source: TICv8
Mass
1.20 Msun
1.09 to 1.20
Radius
1.39 Rsun
1.14 to 1.50
Age
7 Gyr
3.60 to 7
Distance
211.9 pc
single adopted value
Spectral Type
F9
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.39 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
WASP-20
1.39 R☉
System Layout
Known planets
1 planets linked to this host
WASP-20 b
Transit
◌
Discovery
2015
Period
—
Radius
15.47 R⊕
Mass
—
Eq. Temp
1362 K
WASP-20 b: A Jupiter-Like World Around an F9 Star
WASP-20 is a star of spectral type F9 located 691 light-years away. Its reported mass estimate is 1.2 solar masses, its reported radius estimate is 1.39 solar radii, and its reported temperature is 5940 K. The star's reported mass, radius, and temperature estimates are all larger or hotter than the Sun's. It is 7 billion years old. One planet is known to orbit this host.
That planet is WASP-20 b, a Jupiter-like world discovered by the transit method in 2015. Its reported radius estimate is 15.5 Earth radii, larger than Earth's. No orbital period is reported for WASP-20 b.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
Distancestable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5873.5 | — | — | — | — | — | 211.9 | Gaia DR2 | TICv8 |
| 5775.7 | — | 1.50 | — | — | — | 211.9 | TICv8 | TICv8 |
| 5940 | — | 1.50 | — | — | — | 211.9 | ExoFOP | TICv8 |
| 5940 | 1.20 | 1.39 | 7 | — | — | 211.9 | Bonomo et al. 2017 | TICv8 |
| 5940 | 1.20 | 1.39 | 7 | — | F9 | 211.9 | Anderson et al. 2015 | TICv8 |
| — | — | 1.24 | — | — | — | 211.9 | Alexoudi 2022 | TICv8 |
| — | 1.09 | 1.14 | 3.60 | — | — | 211.9 | Evans et al. 2016 | TICv8 |