| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Caelum |
| Right ascension | 04h 32m 32.7558s[1] |
| Declination | −38° 58′ 05.953″[1] |
| Apparent magnitude (V) | 12.84±0.24[2] |
| Characteristics | |
| Spectral type | F9IV[3] |
| B−V color index | −0.21[2] |
| Astrometry | |
| Radial velocity (Rv) | +35.16±0.01[3] km/s |
| Proper motion (μ) | RA: −0.586(10) mas/yr[1] Dec.: 5.347(14) mas/yr[1] |
| Parallax (π) | 1.3723 ± 0.0098 mas[1] |
| Distance | 2,380 ± 20 ly (729 ± 5 pc) |
| Details[3] | |
| Mass | 1.41±0.12 M☉ |
| Radius | 2.11±0.10 R☉ |
| Luminosity | 4.78+0.23 −0.21[4] L☉ |
| Surface gravity (log g) | 3.94±0.04 cgs |
| Temperature | 6,120±140 K |
| Metallicity [Fe/H] | +0.22±0.12 dex |
| Rotational velocity (v sin i) | 5.7±0.4 km/s |
| Age | 3.40±0.95 Gyr |
| Other designations | |
Gaia DR2 4864759888238232320 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
WASP-159 is a faint star located in the southern constellation Caelum. With an apparent magnitude of 12.84, a powerful telescope is needed to see the star. The star is located 2,380 light-years (730 parsecs) based on parallax, but is drifting away with a heliocentric radial velocity of +35.16 km/s.
Gaia DR3 was invoked but never defined (see the help page).Tycho2000 was invoked but never defined (see the help page).Hellier2019 was invoked but never defined (see the help page).TIC was invoked but never defined (see the help page).