Taygeta
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 03h 45m 12.49578s |
| Declination | +24° 28′ 02.2097″ |
| Apparent magnitude (V) | 4.30 |
| Characteristics | |
| Evolutionary stage | subgiant |
| Spectral type | B6IV + ? |
| U−B color index | −0.48 |
| B−V color index | −0.12 |
| Astrometry | |
| Radial velocity (Rv) | 10.1 km/s |
| Proper motion (μ) | RA: +21.24±0.38 mas/yr Dec.: −40.56±0.35 mas/yr |
| Parallax (π) | 7.97±0.33 mas |
| Distance | 410 ± 20 ly (125 ± 5 pc) |
| Details | |
| Taygeta | |
| Mass | 4.41±0.09 M☉ |
| Radius | 4.36±0.14 R☉ |
| Luminosity | 600 L☉ |
| Surface gravity (log g) | 3.772±0.113 cgs |
| Temperature | 13,696±222 K |
| Rotational velocity (v sin i) | 105±16 km/s |
| 19 Tauri Ab | |
| Mass | 3.2 M☉ |
| Luminosity | 150 L☉ |
| Surface gravity (log g) | 4.2 cgs |
| Temperature | 8,306 K |
| Other designations | |
| q Tauri, 19 Tauri, HR 1145, HD 23338, BD+24°547, HIP 17531, SAO 76140, GC 4486, BDS 1848, CCDM 03452+2429 | |
| Database references | |
| SIMBAD | data |
Taygeta is a double star in the constellation of Taurus and a member of the Pleiades open star cluster (M45).
It consists of a binary pair designated 19 Tauri A together with a single star visual companion, 19 Tauri B. 'A's' two components are themselves designated 19 Tauri Aa (officially named Taygeta /teɪˈɪdʒətə/, the traditional name for the entire system) and Ab.
Based on parallax measurements obtained during the Hipparcos mission, Taygeta is approximately 410 light-years from the Sun.