| Identification Data |
| Common Name | |
| Constellation | Taurus |
| Star Name | 51 Tau |
| Skymap Number | 4180064 |
| Henry Draper (HD) Number | 27176 |
| Harvard Revised (HR) Number | 1331 |
| SAO Number | 76541 |
| Durchmusterung (DM) Number | BD+21 618 |
Washington Double Stars (WDS) Number
| 04184+2135
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 93405 |
| Right Ascension (RA) J2000 | 4h 18m 23.202s |
| Declination (Dec) J2000 | +21° 34' 45.469" |
| Position Uncertainty | 0.0320s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00691 |
| Proper Motion in Dec (J2000) | -0.033966 |
| Radial Velocity | +035.4km s-1 |
| Trigonometric Parallax | +0.01825s |
| Trigonometric Parallax Uncertainty | 0.00082s |
| GCI Unit Vector in X (J2000) | 0.398920 |
| GCI Unit Vector in Y (J2000) | 0.839997 |
| GCI Unit Vector in Z (J2000) | 0.367789 |
| Galactic Longitude | 174.00° |
Galactic Latitude
| -20.17°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.64 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
| Observed B Magnitude | 5.93 |
| Observed B-V Colour | +0.289 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.005 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.6 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | F0V |
| One-Dimensional Spectral Class | A5 |
| Position Angle | 62 |
| Year of Observation | 1918. AD |
