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 |