| Observation data EpochJ2000 EquinoxJ2000 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 05h 41m 17.71768s[1] |
| Declination | +16° 32′ 02.9253″[1] |
| Apparent magnitude (V) | 4.836[2] (5.04 / 6.56)[3] |
| Characteristics | |
| Spectral type | B3 IV[4] |
| U−Bcolor index | -0.64[5] |
| B−Vcolor index | -0.12[5] |
| Astrometry | |
| Radial velocity (Rv) | 21.90 ± 0.9[6] km/s |
| Proper motion (μ) | RA: 3.50[1]mas/yr Dec.: −15.47[1]mas/yr |
| Parallax (π) | 5.13±0.81 mas[1] |
| Distance | approx. 600 ly (approx. 190 pc) |
| Orbit[3] | |
| Period (P) | 111.02 ± 1.37yr |
| Semi-major axis (a) | 0.245 ± 0.014″ |
| Eccentricity (e) | 0.661 ± 0.036 |
| Inclination (i) | 80.5 ± 1.1° |
| Longitude of the node (Ω) | 53.2 ± 0.8° |
| Periastronepoch (T) | B 1938.13 ± 1.64 |
| Argument of periastron (ω) (secondary) | 40.9 ± 5.8° |
| Details | |
| 128 Tau A | |
| Mass | 6.31 ± 0.42[4] M☉ |
| Luminosity | 2061[4] L☉ |
| Temperature | 17900[4] K |
| Other designations | |
| BD+16° 841,HD 37711,HIP 26777,HR 1946,SAO 94759 | |
| Database references | |
| SIMBAD | data |
126 Tauri (126 Tau) is ablue subgiantstar in theconstellationTaurus. Itsapparent magnitude is 4.83. It is also a binary star, with anorbital period of 111 years.[3]
 | This subgiant-star-related article is astub. You can help Wikipedia byexpanding it. |
