| Identification Data |
| Common Name | |
| Constellation | Centaurus |
| Star Name | zet Cen |
| Skymap Number | 13550080 |
| Henry Draper (HD) Number | 121263 |
| Harvard Revised (HR) Number | 5231 |
| SAO Number | 224538 |
| Durchmusterung (DM) Number | CD-46 8949 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 318991 |
| Right Ascension (RA) J2000 | 13h 55m 32.385s |
| Declination (Dec) J2000 | -47° 17' 18.150" |
| Position Uncertainty | 0.0059s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00562 |
| Proper Motion in Dec (J2000) | -0.044866 |
| Radial Velocity | +006.5km s-1 |
| Trigonometric Parallax | +0.00848s |
| Trigonometric Parallax Uncertainty | 0.00074s |
| GCI Unit Vector in X (J2000) | -0.593921 |
| GCI Unit Vector in Y (J2000) | -0.327659 |
| GCI Unit Vector in Z (J2000) | -0.734777 |
| Galactic Longitude | 314.08° |
Galactic Latitude
| 14.19°
|
| Observational Data |
| Observed Visual Magnitude (V) | 2.53 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
| Observed B Magnitude | 2.35 |
| Observed B-V Colour | -0.178 |
| 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 | 3.1 |
| Observed Photographic Magnitude | 2.9 |
| Morgan Keenan (MK) Spectral Type | B2.5IV |
| One-Dimensional Spectral Class | B2 |
| Position Angle | |
| Year of Observation | AD |
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