WASP-54
Coordinates: 
13h 41m 49.0302s, −00° 07′ 41.0337″
13h 41m 49.0302s, −00° 07′ 41.0337″| Observation data Epoch J2000 Equinox J2000 | ||
|---|---|---|
| Constellation | Virgo[1] | |
| Right ascension | 13h 41m 49.0301s[2] | |
| Declination | −00° 07′ 41.033″[2] | |
| Apparent magnitude (V) | 10.41[3] | |
| Characteristics | ||
| Evolutionary stage | subgiant[4][5] | |
| Spectral type | F8V[6] | |
Semi-major axis (a) 5.728±0.006" | (1450 AU) | |
| Details Gyr | ||
| WASP-54B | ||
| Mass | 0.19±0.01[7] M☉ | |
| Temperature | 3,216+26 −25[7] K | |
| Database references | ||
Exoplanet Archive | data | |
WASP-54, also known as BD+00 3088, is a
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.[8] WASP-54 is slightly older than the Sun at 6.9+1.0
−1.9 billion years.[8]
−1.9 billion years.[8]
Star system
A multiplicity survey in 2017 detected a red dwarf stellar companion WASP-54B 5.7″ away from WASP-54A.[11] The companion was proven to be co-moving in 2020.[7]
Planetary system
In 2012 a
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.606±0.018 MJ | 0.04988+0.00043 −0.00045 |
3.6936411(59) | <0.06 | 84.97±0.61° | 1.653+0.090 −0.083 RJ |
References
- doi:10.1086/132034. Constellation record for this object at VizieR.
- ^ S2CID 244398875. Gaia DR3 record for this source at VizieR.
- Bibcode:2000A&A...355L..27H.
- Bibcode:2015PhDT.........5I.
- .
- doi:10.1086/657947.
- ^ S2CID 210861118.
- ^ S2CID 118923163.
- ^ Correcting the spectroscopic surface gravity using transits and asteroseismology No significant effect on temperatures or metallicities with ARES and MOOG in local thermodynamic equilibrium
- ^ "BD+00 3088". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2025-05-05.
- S2CID 53400492.
- ^ S2CID 14346225.
