WASP-78
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Eridanus |
| Right ascension | 04h 15m 01.5043s |
| Declination | −22° 06′ 59.103″ |
| Apparent magnitude (V) | 12.0 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | F8 |
| Astrometry | |
| Radial velocity (Rv) | 1.26 km/s |
| Proper motion (μ) | RA: −0.367(11) mas/yr Dec.: 6.395(13) mas/yr |
| Parallax (π) | 1.3851±0.0136 mas |
| Distance | 2,350 ± 20 ly (722 ± 7 pc) |
| Details | |
| Mass | 1.33±0.09 M☉ |
| Radius | 2.20±0.12 R☉ |
| Luminosity | 5.2±0.1 L☉ |
| Surface gravity (log g) | 3.88±0.04 cgs |
| Temperature | 6,100±150 K |
| Metallicity [Fe/H] | −0.35±0.14 dex |
| Rotation | 0.4±0.4 |
| Rotational velocity (v sin i) | 6.63±0.16 km/s |
| Age | 3.4+1.5 −0.8 Gyr |
| Other designations | |
| Gaia DR3 5089851638095503616, TYC 5889-271-1, GSC 05889-00271, 2MASS J04150149-2206591 | |
| Database references | |
| SIMBAD | data |
WASP-78, is a single F-type main-sequence star about 2350 light-years away. It is likely to be younger than the Sun at 3.4+1.5
−0.8 billion years. WASP-78 is depleted in heavy elements, having a 45% concentration of iron compared to the Sun.