WASP-39
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Virgo |
| Right ascension | 14h 29m 18.41517s |
| Declination | −03° 26′ 40.2045″ |
| Apparent magnitude (V) | 12.11 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | G8 |
| Variable type | planetary transit |
| Astrometry | |
| Radial velocity (Rv) | −58.51±0.83 km/s |
| Proper motion (μ) | RA: -19.041 mas/yr Dec.: +0.437 mas/yr |
| Parallax (π) | 4.6435±0.0144 mas |
| Distance | 702 ± 2 ly (215.4 ± 0.7 pc) |
| Details | |
| Mass | 0.93±0.03 M☉ |
| Radius | 0.895±0.023 R☉ |
| Luminosity | 0.63 L☉ |
| Surface gravity (log g) | 4.4±0.2 cgs |
| Temperature | 5400±150 K |
| Metallicity [Fe/H] | −0.12±0.10 dex |
| Rotational velocity (v sin i) | 1.4±0.6 km/s |
| Age | 9+3 −4 Gyr |
| Other designations | |
| Malmok, V732 Vir, TOI-5675, TIC 181949561, WASP-39, 2MASS J14291840-0326403 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
WASP-39, also named Malmok, is a G-type main-sequence star about 702 light-years (215 parsecs) away in the constellation Virgo. With an apparent magnitude of 12.1, it is much too faint to be visible to the naked eye. The star is slightly smaller and cooler than the Sun. It hosts one known exoplanet, WASP-39b.