| Identification Data |
| Common Name | |
| Constellation | Taurus |
| Star Name | 39 Tau |
| Skymap Number | 4050044 |
| Henry Draper (HD) Number | 25680 |
| Harvard Revised (HR) Number | 1262 |
| SAO Number | 76438 |
| Durchmusterung (DM) Number | BD+21 587 |
Washington Double Stars (WDS) Number
| 04053+2201
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 93234 |
| Right Ascension (RA) J2000 | 4h 5m 20.258s |
| Declination (Dec) J2000 | +22° 0' 32.059" |
| Position Uncertainty | 0.0103s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.01241 |
| Proper Motion in Dec (J2000) | -0.130166 |
| Radial Velocity | +023.6km s-1 |
| Trigonometric Parallax | +0.05979s |
| Trigonometric Parallax Uncertainty | 0.00084s |
| GCI Unit Vector in X (J2000) | 0.444739 |
| GCI Unit Vector in Y (J2000) | 0.813492 |
| GCI Unit Vector in Z (J2000) | 0.374751 |
| Galactic Longitude | 171.45° |
Galactic Latitude
| -22.10°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.89 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.006 |
| Observed B Magnitude | 6.54 |
| Observed B-V Colour | +0.645 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.007 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 6.0 |
| Observed Photographic Magnitude | 6.7 |
| Morgan Keenan (MK) Spectral Type | G5V |
| One-Dimensional Spectral Class | G5 |
| Position Angle | 203 |
| Year of Observation | 1988. AD |
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