| Identification Data |
| Common Name | |
| Constellation | Saggitarius |
| Star Name | 4 Sgr |
| Skymap Number | 17590173 |
| Henry Draper (HD) Number | 163955 |
| Harvard Revised (HR) Number | 6700 |
| SAO Number | 186061 |
| Durchmusterung (DM) Number | CD-2313731 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 267632 |
| Right Ascension (RA) J2000 | 17h 59m 47.553s |
| Declination (Dec) J2000 | -23° 48' 58.081" |
| Position Uncertainty | 0.0094s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00039 |
| Proper Motion in Dec (J2000) | -0.050366 |
| Radial Velocity | -018.0km s-1 |
| Trigonometric Parallax | +0.00747s |
| Trigonometric Parallax Uncertainty | 0.00093s |
| GCI Unit Vector in X (J2000) | -0.000828 |
| GCI Unit Vector in Y (J2000) | -0.914846 |
| GCI Unit Vector in Z (J2000) | -0.403803 |
| Galactic Longitude | 6.03° |
Galactic Latitude
| -0.13°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.74 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.72 |
| Observed B-V Colour | -0.025 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.002 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.8 |
| Observed Photographic Magnitude | 4.8 |
| Morgan Keenan (MK) Spectral Type | B9V |
| One-Dimensional Spectral Class | A0 |
| Position Angle | |
| Year of Observation | AD |
