WASP-5
G-type main-sequence star
From Wikipedia, the free encyclopedia
WASP-5 is a magnitude 12 G-type main-sequence star located about 1,020 light-years (310 parsecs) away in the Phoenix constellation.[3] The star is likely older than the Sun, slightly enriched in heavy elements and is rotating rapidly, being spun up by the tides raised by the giant planet on a close orbit.[6]
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Phoenix[1] |
| Right ascension | 23h 57m 23.75647s[2] |
| Declination | −41° 16′ 37.7437″[2] |
| Apparent magnitude (V) | 12.146[3] |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | G4V[4] |
| Apparent magnitude (B) | 12.808±0.02[3] |
| Apparent magnitude (V) | 12.146±0.01[3] |
| Apparent magnitude (J) | 10.949±0.022[3] |
| Apparent magnitude (H) | 10.650±0.025[3] |
| Apparent magnitude (K) | 10.598±0.023[3] |
| Astrometry | |
| Radial velocity (Rv) | 20.49±0.67[2] km/s |
| Proper motion (μ) | RA: 7.406(14) mas/yr[2] Dec.: −16.072(14) mas/yr[2] |
| Parallax (π) | 3.1883±0.0150 mas[2] |
| Distance | 1,023 ± 5 ly (314 ± 1 pc) |
| Details[5] | |
| Mass | 1.033±0.045 M☉ |
| Radius | 1.088±0.040 R☉ |
| Temperature | 5770±65 K |
| Metallicity [Fe/H] | 0.090±0.090 dex |
| Rotation | 16.20±0.40 d |
| Rotational velocity (v sin i) | 3.40±0.70 km/s |
| Age | 5.84±1.86[6] Gyr |
| Other designations | |
| TOI-250, TIC 184240683, WASP-5, GSC 08018-00199, 2MASS J23572375-4116377, DENIS J235723.7-411637, UCAC2 14323784[3] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
Planetary system
This star has one exoplanet, WASP-5b, detected by the SuperWASP project in 2007.[4]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 1.590+0.053 −0.052 MJ |
0.02739±0.00039 | 1.62842953(52) | <0.012 | 85.8±1.1° | 1.175±0.056 RJ |
