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The star WASP-1. |
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| Observation data Epoch 2000 Equinox 2000 |
|
|---|---|
| Constellation | Andromeda |
| Right ascension | 00h 20m 40.077s[1] |
| Declination | +31º 59' 23.79″[1] |
| Apparent magnitude (V) | 11.79 |
| Characteristics | |
| Spectral type | F7V[1] |
| Apparent magnitude (B) | ~12.0[1] |
| Apparent magnitude (V) | ~11.8[1] |
| Astrometry | |
| Proper motion (μ) | RA: -4.8 ± 2.3[1] mas/yr Dec.: -5.6 ± 2.3[1] mas/yr |
| Distance | 1239 ly (380 pc) |
| Absolute magnitude (MV) | 12.0 |
| Details | |
| Mass | 1.24 (± 0.17) M☉ |
| Radius | 1.382 (± 0.1) R☉ |
| Luminosity | 2.4 L☉ |
| Temperature | 6200 (± 200) K |
| Metallicity | 0.23 ±0.08[2] |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Extrasolar Planets Encyclopaedia |
data |
WASP-1 is a metal rich magnitude 12 star located about 1240 light-years away in the Andromeda constellation.[2]
Contents |
In 2006 the extrasolar planet WASP-1b was discovered by the SuperWASP project using the transit method.[3]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity |
|---|---|---|---|---|
| WASP-1b | 0.86 ± 0.07 MJ | 0.0382 ± 0.0013 | 2.5199464 ± 8e-07 | 0 |