HD 29399
HD 29399 is a binary star in the constellation Reticulum. With an apparent visual magnitude of 5.78, it is visible to the naked eye under good viewing conditions. From its parallax measured by the Gaia, it is located at a distance of 144 light-years (44 parsecs) from Earth.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Reticulum |
| Right ascension | 04h 33m 33.949s |
| Declination | −62° 49′ 25.24″ |
| Apparent magnitude (V) | 5.780 |
| Characteristics | |
| Spectral type | K1III |
| U−B color index | +2.111 |
| B−V color index | +0.332 |
| Astrometry | |
| Radial velocity (Rv) | 31.56±0.13 km/s |
| Proper motion (μ) | RA: −117.58±0.04 mas/yr Dec.: −18.73±0.04 mas/yr |
| Parallax (π) | 22.7240 ± 0.0339 mas |
| Distance | 143.5 ± 0.2 ly (44.01 ± 0.07 pc) |
| Details | |
| Mass | 1.17±0.10 M☉ |
| Radius | 4.47±0.02 R☉ |
| Luminosity | 10.04±0.20 L☉ |
| Surface gravity (log g) | 3.25±0.13 cgs |
| Temperature | 4,845±52 K |
| Metallicity [Fe/H] | 0.14±0.03 dex |
| Rotational velocity (v sin i) | 2.48 km/s |
| Age | 6.20±0.5 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
This star is a K-type giant with an spectral type of K1III. Its magnitude 9.2 companion is located at a separation of 31.9 arcseconds. In 2022, a gas giant planet was discovered via the radial velocity method orbiting the primary star.
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