HD 29399
| 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 | |
| Evolutionary stage | Red-giant branch |
| 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 | 1.361±0.057 M☉ |
| Radius | 4.845±0.082 R☉ |
| Luminosity | 11.7+0.6 −0.7 L☉ |
| Surface gravity (log g) | 3.202±0.023 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 | |
| CD−63°153, HD 29399, HIP 21253, HR 1475, SAO 249054 | |
| Database references | |
| SIMBAD | data |
HD 29399 is a binary star in the constellation Reticulum. Its main component is a red giant with an apparent magnitude of +5.78 which hosts an exoplanet. The secondary is a magnitude 9.2 star that is 31.9" distant from the primary. This system is only visible to the naked eye under dark skies far from light pollution. From its parallax measured by the Gaia spacecraft, it is located at a distance of 144 light-years (44 parsecs) from Earth.