WASP-66
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Antlia |
| Right ascension | 10h 32m 53.993s |
| Declination | −34° 59′ 23.46″ |
| Apparent magnitude (V) | 11.60 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | F4.5 V |
| Astrometry | |
| Proper motion (μ) | RA: 11.452 mas/yr Dec.: −13.476 mas/yr |
| Parallax (π) | 1.9962±0.0313 mas |
| Distance | 1,630 ± 30 ly (501 ± 8 pc) |
| Details | |
| Mass | 1.30±0.07 M☉ |
| Radius | 1.75±0.09 R☉ |
| Luminosity | 4.3 L☉ |
| Surface gravity (log g) | 5.00 cgs |
| Temperature | 6,600±150 K |
| Metallicity [Fe/H] | 0.05 dex |
| Rotational velocity (v sin i) | 13.4±0.9 km/s |
| Age | 3.7+0.7 −1.2 Gyr |
| Other designations | |
| TYC 7193-1804-1, 2MASS J10325399-3459234 | |
| Database references | |
| SIMBAD | data |
WASP-66, also known as TYC 7193-1804-1, is an F-type star in the constellation Antlia. It has an apparent magnitude of 11.6, which is much too faint to be seen with the unaided eye and is located at a distance of 1,630 light years.
WASP-66 has a classification of F4.5 V, which states that it is an ordinary F-type main sequence star that is fusing hydrogen at its core. At present it has 130% the mass of the Sun and 175 the radius of the Sun. It has an effective temperature of 6,600 K, which gives it a yellowish-white hue. The star is younger than Sun at 3.7+0.7
−1.2 billion years, and may be either metal-poor or similar to Sun in concentration of heavy elements. Currently it is spinning moderately with a projected rotational velocity of 13.4 km/s.
According to a survey published in 2017, WASP-66 has one suspected companion - a red dwarf star with an effective temperature of 3,330±150 K and a projected separation of 6,800±700 AU.