Temperature
6200 K
5920 to 6252
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Stellar HostProfile
WASP-1
F7 V • 393.1 pc
Records
13
literature rows
Planets
1
system count
References
14
distinct source labels
TIC: TIC 57984377
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: Collier Cameron et al. 2007 • System source: TICv8
Mass
1.15 Msun
1.15 to 1.30
Radius
1.24 Rsun
1.24 to 1.60
Distance
393.1 pc
single adopted value
Spectral Type
F7 V
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.24 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
WASP-1
1.24 R☉
System Layout
Known planets
1 planets linked to this host
WASP-1 b
Transit
◌
Discovery
2007
Period
2.52 days
Radius
16.62 R⊕
Mass
271.4 M⊕
Eq. Temp
—
WASP-1 and Its Giant Planet
WASP-1 is a star 1280 light-years away with a spectral type of F7 V, placing it among the hotter, F-type main-sequence stars. Its reported mass is 1.15 solar masses, its radius is 1.24 solar radii, and its surface temperature is 6200 K. Each of these estimates is larger or hotter than the corresponding value for the Sun. One planet is known to orbit this host.
That planet, WASP-1 b, was discovered by the transit method in 2007, which detects the small dip in a star's brightness when a planet crosses in front of it. WASP-1 b is classified as Jupiter-like, meaning its radius exceeds four times Earth's. Its radius is 16.6 Earth radii and its mass is 271 Earth masses, both larger than Earth's corresponding values. It completes an orbit in 2.52 days. Its mean density is 0.326 g/cm³, which is 0.0591 times Earth's mean density.
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
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 6116 | — | 1.56 | — | — | — | 393.1 | ExoFOP | TICv8 |
| 6110 | 1.24 | 1.46 | 3 | — | — | 393.1 | Southworth 2010 | TICv8 |
| 6110 | — | — | — | — | — | 393.1 | Simpson et al. 2011 | TICv8 |
| 6252 | 1.27 | 1.28 | — | — | — | 393.1 | Mortier et al. 2013 | TICv8 |
| 6116 | 1.15 | 1.56 | — | 0.49 | — | 393.1 | TICv8 | TICv8 |
| 6110 | — | — | — | — | — | 393.1 | Turner et al. 2016 | TICv8 |
| — | 1.27 | — | — | — | — | 393.1 | Knutson et al. 2014 | TICv8 |
| 6110 | 1.30 | 1.52 | 3 | — | — | 393.1 | Bonomo et al. 2017 | TICv8 |
| — | 1.24 | 1.47 | 3.40 | 0.44 | — | 393.1 | Maciejewski et al. 2014 | TICv8 |
| — | 1.30 | 1.52 | — | 0.46 | — | 393.1 | Torres et al. 2008 | TICv8 |
| 6213 | 1.26 | 1.47 | 2.70 | — | — | 393.1 | Southworth 2012 | TICv8 |
| 5920 | — | 1.60 | — | 0.45 | — | 393.1 | Gaia DR2 | TICv8 |
| 6200 | 1.15 | 1.24 | — | — | F7 V | 393.1 | Collier Cameron et al. 2007 | TICv8 |