WASP-54
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Virgo |
| Right ascension | 13h 41m 49.0301s |
| Declination | −00° 07′ 41.033″ |
| Apparent magnitude (V) | 10.41 |
| Characteristics | |
| Evolutionary stage | subgiant |
| Spectral type | F8V |
| Astrometry | |
| Radial velocity (Rv) | −2.71±0.22 km/s |
| Proper motion (μ) | RA: −10.810 mas/yr Dec.: −24.744 mas/yr |
| Parallax (π) | 3.9859±0.0200 mas |
| Distance | 818 ± 4 ly (251 ± 1 pc) |
| Orbit | |
| Primary | WASP-54A |
| Name | WASP-54B |
| Semi-major axis (a) | 5.728±0.006" (1450 AU) |
| Details | |
| WASP-54A | |
| Mass | 1.213±0.032 M☉ |
| Radius | 1.828+0.091 −0.081 R☉ |
| Surface gravity (log g) | 4.00±0.02 cgs |
| Temperature | 6,100±100 K |
| Metallicity [Fe/H] | −0.27±0.08 dex |
| Rotational velocity (v sin i) | 4.0±0.8 km/s |
| Age | 6.9+1.0 −1.9 Gyr |
| WASP-54B | |
| Mass | 0.19±0.01 M☉ |
| Temperature | 3,216+26 −25 K |
| Other designations | |
| BD+00 3088, TOI-1833, TIC 61098812, WASP-54, TYC 4967-678-1, GSC 04967-00678, 2MASS J13414903-0007410 | |
| Database references | |
| SIMBAD | A |
| B | |
| Exoplanet Archive | data |
WASP-54, also known as BD+00 3088, is a binary star system about 818 light-years away in the constellation Virgo. The primary, WASP-54A, is an F-type subgiant, accompanied by the red dwarf WASP-54B on a wide orbit. WASP-54 is depleted in heavy elements, having 55% of the solar abundance of iron. WASP-54 is slightly older than the Sun at 6.9+1.0
−1.9 billion years.