WASP-94
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Microscopium |
| A | |
| Right ascension | 20h 55m 07.94435s |
| Declination | −34° 08′ 08.0075″ |
| Apparent magnitude (V) | 10.1 |
| B | |
| Right ascension | 20h 55m 09.15767s |
| Declination | −34° 08′ 07.9138″ |
| Apparent magnitude (V) | 10.5 |
| Characteristics | |
| A | |
| Evolutionary stage | main sequence |
| Spectral type | F8 |
| B | |
| Evolutionary stage | subgiant |
| Spectral type | F9 |
| Astrometry | |
| A | |
| Radial velocity (Rv) | −8.36±0.19 km/s |
| Proper motion (μ) | RA: +26.500 mas/yr Dec.: −44.971 mas/yr |
| Parallax (π) | 4.7498±0.0242 mas |
| Distance | 687 ± 3 ly (211 ± 1 pc) |
| B | |
| Radial velocity (Rv) | −8.30±0.20 km/s |
| Proper motion (μ) | RA: +26.191 mas/yr Dec.: −44.702 mas/yr |
| Parallax (π) | 4.7208 ± 0.0165 mas |
| Distance | 691 ± 2 ly (211.8 ± 0.7 pc) |
| Details | |
| A | |
| Mass | 1.45±0.09 M☉ |
| Radius | 1.62+0.05 −0.04 R☉ |
| Luminosity | 3.2 L☉ |
| Surface gravity (log g) | 4.21±0.011 cgs |
| Temperature | 6194±5 K |
| Metallicity [Fe/H] | +0.320±0.004 dex |
| Rotation | 19.5 d |
| Rotational velocity (v sin i) | 4.2±0.5 km/s |
| Age | 2.3–2.8 Gyr |
| B | |
| Mass | 1.24±0.09 M☉ |
| Radius | 1.35±0.12 R☉ |
| Luminosity | 2.2 L☉ |
| Surface gravity (log g) | 4.30±0.015 cgs |
| Temperature | 6112±6 K |
| Metallicity [Fe/H] | +0.305±0.005 dex |
| Rotation | >45.5 d |
| Rotational velocity (v sin i) | <1.5 km/s |
| Age | 2.3–2.8 Gyr |
| Other designations | |
| CD−34 14724, WASP-94, HJ 5234 | |
| A: TOI-107, TIC 92352620, TYC 7466-1400-1, 2MASS J20550794-3408079 | |
| B: TIC 92352621, 2MASS J20550915-3408078 | |
| Database references | |
| SIMBAD | A |
| B | |
| Exoplanet Archive | data |
WASP-94 is a binary star system located about 690 light-years (210 parsecs) away in the constellation Microscopium. It consists of two F-type stars separated by 15″, corresponding to a projected separation of 2700 au. Both stars are known to host exoplanets.
The binary system was first observed by John Herschel in 1834 and catalogued as HJ 5234. The designation WASP-94 comes from the Wide Angle Search for Planets, and has been used since the system was found to host planets in 2014. While the two stars have similar spectral types, they differ in elemental abundance – WASP-94A has fewer volatile elements and more refractory elements than WASP-94B.