Temperature
6217 K
6217 to 6443
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Stellar HostProfile
WASP-31
Unclassified star • 383.8 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
TIC: TIC 437248515
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: TICv8 • System source: TICv8
Mass
1.20 Msun
1.10 to 1.20
Radius
1.27 Rsun
0.76 to 1.27
Luminosity
0.34 log(Lsun)
0.31 to 0.34
Distance
383.8 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.27 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
WASP-31
1.27 R☉
System Layout
Known planets
1 planets linked to this host
WASP-31 b
Transit
◌
Discovery
2010
Period
3.41 days
Radius
17.36 R⊕
Mass
151.9 M⊕
Eq. Temp
—
WASP-31 and Its Jupiter-Like Planet
WASP-31 is a star 1250 light-years away with a mass of 1.2 solar masses and a radius of 1.27 solar radii. Its temperature is 6220 K. One planet orbits this host.
That planet, WASP-31 b, was discovered by transit in 2010 and is classified as Jupiter-like. It has a mass of 152 Earth masses, a radius of 17.4 Earth radii, and an orbital period of 3.41 days.
The star's reported mass and radius estimates are larger than the Sun's, and its reported temperature is hotter than the Sun's. WASP-31 b's reported radius and mass estimates are larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
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 |
|---|---|---|---|---|---|---|---|---|
| 6300 | 1.16 | 1.24 | — | — | — | 383.8 | Brown et al. 2012 | TICv8 |
| 6443 | 1.10 | 0.76 | — | — | — | 383.8 | Mortier et al. 2013 | TICv8 |
| 6217 | 1.20 | 1.27 | — | 0.34 | — | 383.8 | TICv8 | TICv8 |
| 6302 | 1.16 | 1.25 | — | — | — | 383.8 | Anderson et al. 2011 | TICv8 |
| 6335.5 | — | 1.19 | — | 0.31 | — | 383.8 | Gaia DR2 | TICv8 |
| 6302 | — | 1.27 | — | — | — | 383.8 | ExoFOP | TICv8 |
| 6300 | 1.17 | 1.25 | 1 | — | — | 383.8 | Bonomo et al. 2017 | TICv8 |