| Identification Data |
| Common Name | |
| Constellation | Aquila |
| Star Name | 51 Aql |
| Skymap Number | 19500191 |
| Henry Draper (HD) Number | 187532 |
| Harvard Revised (HR) Number | 7553 |
| SAO Number | 163036 |
| Durchmusterung (DM) Number | SD-11 5149 |
Washington Double Stars (WDS) Number
| 19508-1046
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 236571 |
| Right Ascension (RA) J2000 | 19h 50m 46.783s |
| Declination (Dec) J2000 | -10° 45' 48.642" |
| Position Uncertainty | 0.0127s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00220 |
| Proper Motion in Dec (J2000) | +0.031866 |
| Radial Velocity | +006.0km s-1 |
| Trigonometric Parallax | +0.03786s |
| Trigonometric Parallax Uncertainty | 0.00097s |
| GCI Unit Vector in X (J2000) | 0.456587 |
| GCI Unit Vector in Y (J2000) | -0.869857 |
| GCI Unit Vector in Z (J2000) | -0.186756 |
| Galactic Longitude | 29.83° |
Galactic Latitude
| -18.00°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.39 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.050 |
| Observed B Magnitude | 5.77 |
| Observed B-V Colour | +0.38 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.050 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.6 |
| Observed Photographic Magnitude | 5.8 |
| Morgan Keenan (MK) Spectral Type | F0V |
| One-Dimensional Spectral Class | F0 |
| Position Angle | 117 |
| Year of Observation | 1903. AD |
