| Identification Data |
| Common Name | |
| Constellation | Taurus |
| Star Name | 90 Tau |
| Skymap Number | 4380018 |
| Henry Draper (HD) Number | 29388 |
| Harvard Revised (HR) Number | 1473 |
| SAO Number | 94044 |
| Durchmusterung (DM) Number | BD+12 618 |
Washington Double Stars (WDS) Number
| 04382+1231
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 120092 |
| Right Ascension (RA) J2000 | 4h 38m 9.462s |
| Declination (Dec) J2000 | +12° 30' 39.017" |
| Position Uncertainty | 0.0108s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00695 |
| Proper Motion in Dec (J2000) | -0.014966 |
| Radial Velocity | +044.7km s-1 |
| Trigonometric Parallax | +0.02179s |
| Trigonometric Parallax Uncertainty | 0.00079s |
| GCI Unit Vector in X (J2000) | 0.341262 |
| GCI Unit Vector in Y (J2000) | 0.914666 |
| GCI Unit Vector in Z (J2000) | 0.216624 |
| Galactic Longitude | 184.74° |
Galactic Latitude
| -22.24°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.27 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 4.40 |
| Observed B-V Colour | +0.133 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.3 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | A6V |
| One-Dimensional Spectral Class | A3 |
| Position Angle | 322 |
| Year of Observation | 1910. AD |
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