Tau Tauri
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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 04h 42m 14.7s |
| Declination | +22° 57' 25" |
| Apparent magnitude (V) | +4.26 |
| Distance | 401 ± 38 ly (123 ± 12 pc) |
| Spectral type | B3V |
| Other designations | |
94 Tauri, HR 1497, HD 29763, BD+22 739, FK5 174, HIP 21881, SAO 76721, GC 5716, BDS 2313, CCDM 04422+2257 | |
Tau Tauri (τ Tau, τ Tauri) is a triple star system[citation needed] in the constellation Taurus. It is approximately 401 light years from Earth.
The primary component, Tau Tauri A, is a blue-white B-type main sequence dwarf with an apparent V magnitude of +4.26.[1] It has a close companion 0.1 arcseconds away which has a magnitude of +8.9. At a separation of 63 arcseconds is the third component of the system, Tau Tauri C, which is classified as a white A-type star and has a V magnitude of +7.10.[1]
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