| Identification Data |
| Common Name | |
| Constellation | Aquila |
| Star Name | 57 Aql |
| Skymap Number | 19540135 |
| Henry Draper (HD) Number | 188294 |
| Harvard Revised (HR) Number | 7594 |
| SAO Number | 143899 |
| Durchmusterung (DM) Number | SD-08 5155 |
Washington Double Stars (WDS) Number
| 19546-0814
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 203425 |
| Right Ascension (RA) J2000 | 19h 54m 38.062s |
| Declination (Dec) J2000 | -8° 14' 13.372" |
| Position Uncertainty | 0.0109s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00027 |
| Proper Motion in Dec (J2000) | -0.030266 |
| Radial Velocity | -005.0km s-1 |
| Trigonometric Parallax | +0.00902s |
| Trigonometric Parallax Uncertainty | 0.00109s |
| GCI Unit Vector in X (J2000) | 0.474642 |
| GCI Unit Vector in Y (J2000) | -0.868441 |
| GCI Unit Vector in Z (J2000) | -0.143269 |
| Galactic Longitude | 32.66° |
Galactic Latitude
| -17.77°
|
| Observational Data |
| Observed Visual Magnitude (V) | 6.44 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.008 |
| Observed B Magnitude | 6.42 |
| Observed B-V Colour | -0.019 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.010 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 6.9 |
| Observed Photographic Magnitude | 6.3 |
| Morgan Keenan (MK) Spectral Type | B8V |
| One-Dimensional Spectral Class | B7 |
| Position Angle | |
| Year of Observation | AD |
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