| Identification Data |
| Common Name | |
| Constellation | Aquila |
| Star Name | 57 Aql |
| Skymap Number | 19540134 |
| Henry Draper (HD) Number | 188293 |
| Harvard Revised (HR) Number | 7593 |
| SAO Number | 143898 |
| Durchmusterung (DM) Number | SD-08 5154 |
Washington Double Stars (WDS) Number
| 19546-0814
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 203424 |
| Right Ascension (RA) J2000 | 19h 54m 37.652s |
| Declination (Dec) J2000 | -8° 13' 38.239" |
| Position Uncertainty | 0.0110s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00055 |
| Proper Motion in Dec (J2000) | -0.025766 |
| Radial Velocity | -006.0km s-1 |
| Trigonometric Parallax | +0.00974s |
| Trigonometric Parallax Uncertainty | 0.00108s |
| GCI Unit Vector in X (J2000) | 0.474628 |
| GCI Unit Vector in Y (J2000) | -0.868476 |
| GCI Unit Vector in Z (J2000) | -0.143100 |
| Galactic Longitude | 32.67° |
Galactic Latitude
| -17.76°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.69 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.006 |
| Observed B Magnitude | 5.61 |
| Observed B-V Colour | -0.082 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.007 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.9 |
| Observed Photographic Magnitude | 5.6 |
| Morgan Keenan (MK) Spectral Type | B7Vn |
| One-Dimensional Spectral Class | B3 |
| Position Angle | 170 |
| Year of Observation | 1968. AD |
