| Identification Data | 
| Common Name |  | 
| Constellation | Lupus | 
| Star Name | zet Lup | 
| Skymap Number | 15120045 | 
| Henry Draper (HD) Number | 134505 | 
| Harvard Revised (HR) Number | 5649 | 
| SAO Number | 242304 | 
| Durchmusterung (DM) Number | CD-51 8830 | 
Washington Double Stars (WDS) Number
  | 15123-5206
  | 
| Positional Data | 
| Position and Proper Motion (PPM) Number | 343507 | 
| Right Ascension (RA) J2000 | 15h 12m 17.095s | 
| Declination (Dec) J2000 | -52° 5' 57.290" | 
| Position Uncertainty | 0.0082s | 
| Proper Motion in RA (J2000)/cos(Dec) | -0.01237 | 
| Proper Motion in Dec (J2000) | -0.071066 | 
| Radial Velocity | -010.0km s-1 | 
| Trigonometric Parallax | +0.02806s | 
| Trigonometric Parallax Uncertainty | 0.00071s | 
| GCI Unit Vector in X (J2000) | -0.410476 | 
| GCI Unit Vector in Y (J2000) | -0.457021 | 
| GCI Unit Vector in Z (J2000) | -0.789076 | 
| Galactic Longitude | 323.77° | 
Galactic Latitude
  | 4.98°
  | 
| Observational Data | 
| Observed Visual Magnitude (V) | 3.41 | 
| Derived Visual Magnitude |  | 
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 | 
| Observed B Magnitude | 4.33 | 
| Observed B-V Colour | +0.918 | 
| 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 | 3.5 | 
| Observed Photographic Magnitude | 4.5 | 
| Morgan Keenan (MK) Spectral Type | G8III | 
| One-Dimensional Spectral Class | K0 | 
| Position Angle | 249 | 
| Year of Observation | 1938. AD |