| Identification Data |
| Common Name | |
| Constellation | Scorpius |
| Star Name | 4 Sco |
| Skymap Number | 15550077 |
| Henry Draper (HD) Number | 142445 |
| Harvard Revised (HR) Number | 5917 |
| SAO Number | 183931 |
| Durchmusterung (DM) Number | CD-2511190 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 264865 |
| Right Ascension (RA) J2000 | 15h 55m 30.079s |
| Declination (Dec) J2000 | -26° 15' 57.577" |
| Position Uncertainty | 0.0097s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00260 |
| Proper Motion in Dec (J2000) | -0.029966 |
| Radial Velocity | -005.0km s-1 |
| Trigonometric Parallax | +0.00755s |
| Trigonometric Parallax Uncertainty | 0.00093s |
| GCI Unit Vector in X (J2000) | -0.463531 |
| GCI Unit Vector in Y (J2000) | -0.767657 |
| GCI Unit Vector in Z (J2000) | -0.442539 |
| Galactic Longitude | 346.53° |
Galactic Latitude
| 20.64°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.63 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 5.76 |
| Observed B-V Colour | +0.134 |
| 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 | 5.5 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | A3V |
| One-Dimensional Spectral Class | A2 |
| Position Angle | |
| Year of Observation | AD |
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