14 Eridani
14 Eridani is a star in the equatorial Eridanus constellation. It has an apparent visual magnitude of 6.143 and is moving closer to the Sun with a radial velocity of around −5 km/s. The measured annual parallax shift is 29.26 mas, which provides an estimated distance of about 121 light years. Proper motion studies indicate that this is an astrometric binary.
| Observation data Epoch J2000 Equinox | |
|---|---|
| Constellation | Eridanus |
| Right ascension | 03h 16m 35.75439s |
| Declination | −09° 09′ 16.3318″ |
| Apparent magnitude (V) | 6.143 |
| Characteristics | |
| Spectral type | F5 V Fe−0.7 CH−0.5 |
| B−V color index | 0.399 |
| Astrometry | |
| Radial velocity (Rv) | −5.3±2.9 km/s |
| Proper motion (μ) | RA: +8.057 mas/yr Dec.: +22.871 mas/yr |
| Parallax (π) | 26.9856 ± 0.2356 mas |
| Distance | 121 ± 1 ly (37.1 ± 0.3 pc) |
| Absolute magnitude (MV) | 3.47 |
| Details | |
| Mass | 1.31 M☉ |
| Radius | 1.48+0.9 −0.8 R☉ |
| Luminosity | 3.87±0.04 L☉ |
| Surface gravity (log g) | 4.34±0.14 cgs |
| Temperature | 6,719±228 K |
| Metallicity [Fe/H] | −0.10 dex |
| Age | 1.391 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
The visible component has a stellar classification of F5 V Fe−0.7 CH−0.5, which indicates it has the spectrum of an F-type main-sequence star with mild underabundances of iron and methylidyne. It is 1.4 billion years old with 1.3 times the mass of the Sun and 1.5 times the Sun's radius. The star is radiating 3.87 times the luminosity of the Sun from its photosphere at an effective temperature of 6,719 K. The system has been detected as a source of X-ray emission.