14 Eridani

14 Eridani is a star in the equatorial Eridanus constellation. It has an apparent visual magnitude of 6.143^[2] and is moving closer to the Sun with a radial velocity of around −5 km/s.^[4] The measured annual parallax shift is 29.26 mas,^[1] which provides an estimated distance of about 121 light years. Proper motion studies indicate that this is an astrometric binary.^[9][10]

14 Eridani

Observation data Epoch J2000      Equinox
Constellation	Eridanus
Right ascension	03h 16m 35.75439s[1]
Declination	−09° 09′ 16.3318″[1]
Apparent magnitude (V)	6.143[2]
Characteristics
Spectral type	F5 V Fe−0.7 CH−0.5[3]
B−V color index	0.399[2]
Astrometry
Radial velocity (Rv)	−5.3±2.9[4] km/s
Proper motion (μ)	RA: +8.057[1] mas/yr Dec.: +22.871[1] mas/yr
Parallax (π)	26.9856±0.2356 mas[1]
Distance	121 ± 1 ly (37.1 ± 0.3 pc)
Absolute magnitude (MV)	3.47[5]
Details
Mass	1.31[6] M☉
Radius	1.48+0.9 −0.8[1] R☉
Luminosity	3.87±0.04[1] L☉
Surface gravity (log g)	4.34±0.14[6] cgs
Temperature	6,719±228[6] K
Metallicity [Fe/H]	−0.10[7] dex
Age	1.391[6] Gyr
Other designations
14 Eri, BD−09° 627, GC 3918, HD 20395, HIP 15244, HR 988, SAO 130395, PPM 185595, WDS J03158-0849B[8]
Database references
SIMBAD	data

The visible component has a stellar classification of F5 V Fe−0.7 CH−0.5,^[3] which indicates it has the spectrum of an F-type main-sequence star with mild underabundances of iron and methylidyne. It is 1.4^[6] billion years old with 1.3^[6] times the mass of the Sun and 1.5^[1] times the Sun's radius. The star is radiating 3.87^[1] times the luminosity of the Sun from its photosphere at an effective temperature of 6,719 K.^[6] The system has been detected as a source of X-ray emission.^[11]