ν Tauri, Latinized as Nu Tauri, is a single[11] star in the zodiac constellation of Taurus. It is a white-hued star and is visible to the naked eye with an apparent visual magnitude of +3.91.[2] This object is located 117 light years from the Sun based on parallax,[1] but is drifting closer with a radial velocity of −6 km/s.[6] It is predicted to come to within roughly 18.4 ly of the Sun in around five million years.[12]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Taurus |
Right ascension | 04h 03m 09.37966s[1] |
Declination | +05° 59′ 21.4792″[1] |
Apparent magnitude (V) | 3.91[2] |
Characteristics | |
Evolutionary stage | main sequence[3] |
Spectral type | A0.5Va[4] |
U−B color index | +0.06[5] |
B−V color index | +0.03[5] |
Astrometry | |
Radial velocity (Rv) | −5.7±0.9[6] km/s |
Proper motion (μ) | RA: +4.72[1] mas/yr Dec.: −3.78[1] mas/yr |
Parallax (π) | 27.89 ± 0.19 mas[1] |
Distance | 116.9 ± 0.8 ly (35.9 ± 0.2 pc) |
Absolute magnitude (MV) | 1.14[2] |
Details | |
Mass | 2.25±0.01[3] M☉ |
Radius | 2.87+0.16 −0.31[7] R☉ |
Luminosity | 28.1±0.4[7] L☉ |
Surface gravity (log g) | 4.02[8] cgs |
Temperature | 7,836+464 −203[7] K |
Metallicity [Fe/H] | −0.19±0.08[9] dex |
Rotational velocity (v sin i) | 83[3] km/s |
Age | 206[8] Myr |
Other designations | |
Database references | |
SIMBAD | data |
This object is an A-type main-sequence star with a stellar classification of A0.5Va.[4] It is 206[8] million years old and is rotating with a projected rotational velocity of 83 km/s.[3] The star has 2.25[3] times the mass of the Sun and 2.87[7] times the Sun's radius. It is radiating 28 times the luminosity of the Sun from its photosphere at an effective temperature of 7,836 K.[7]
Nu Tauri has a magnitude 9.21 visual companion at an angular separation 15.9″.[13]