| Identification Data |
| Common Name | |
| Constellation | Saggitarius |
| Star Name | 51 Sgr |
| Skymap Number | 19360009 |
| Henry Draper (HD) Number | 184552 |
| Harvard Revised (HR) Number | 7431 |
| SAO Number | 188326 |
| Durchmusterung (DM) Number | CD-2415442 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 270015 |
| Right Ascension (RA) J2000 | 19h 36m 1.653s |
| Declination (Dec) J2000 | -24° 43' 8.693" |
| Position Uncertainty | 0.0088s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00045 |
| Proper Motion in Dec (J2000) | -0.026466 |
| Radial Velocity | -030.5km s-1 |
| Trigonometric Parallax | +0.01123s |
| Trigonometric Parallax Uncertainty | 0.00090s |
| GCI Unit Vector in X (J2000) | 0.369567 |
| GCI Unit Vector in Y (J2000) | -0.829792 |
| GCI Unit Vector in Z (J2000) | -0.418170 |
| Galactic Longitude | 14.79° |
Galactic Latitude
| -20.30°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.65 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 5.84 |
| Observed B-V Colour | +0.189 |
| 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 | 6.0 |
| Observed Photographic Magnitude | 5.8 |
| Morgan Keenan (MK) Spectral Type | A7m |
| One-Dimensional Spectral Class | A3 |
| Position Angle | |
| Year of Observation | AD |
