| Identification Data |
| Common Name | |
| Constellation | Lupus |
| Star Name | tau1Lup |
| Skymap Number | 14260028 |
| Henry Draper (HD) Number | 126341 |
| Harvard Revised (HR) Number | 5395 |
| SAO Number | 224919 |
| Durchmusterung (DM) Number | CD-44 9322 |
Washington Double Stars (WDS) Number
| 14261-4513
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 319521 |
| Right Ascension (RA) J2000 | 14h 26m 8.223s |
| Declination (Dec) J2000 | -45° 13' 17.127" |
| Position Uncertainty | 0.0078s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00128 |
| Proper Motion in Dec (J2000) | -0.014066 |
| Radial Velocity | -215.0km s-1 |
| Trigonometric Parallax | +0.00315s |
| Trigonometric Parallax Uncertainty | 0.00069s |
| GCI Unit Vector in X (J2000) | -0.565961 |
| GCI Unit Vector in Y (J2000) | -0.419313 |
| GCI Unit Vector in Z (J2000) | -0.709834 |
| Galactic Longitude | 319.92° |
Galactic Latitude
| 14.50°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.56 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 4.41 |
| Observed B-V Colour | -0.152 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.7 |
| Observed Photographic Magnitude | 4.5 |
| Morgan Keenan (MK) Spectral Type | B2IV |
| One-Dimensional Spectral Class | B3 |
| Position Angle | 204 |
| Year of Observation | 1913. AD |
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