| Identification Data |
| Common Name | |
| Constellation | Hercules |
| Star Name | 57 Her |
| Skymap Number | 16570088 |
| Henry Draper (HD) Number | 153287 |
| Harvard Revised (HR) Number | 6305 |
| SAO Number | 84720 |
| Durchmusterung (DM) Number | BD+25 3166 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 105381 |
| Right Ascension (RA) J2000 | 16h 57m 31.046s |
| Declination (Dec) J2000 | +25° 21' 10.228" |
| Position Uncertainty | 0.0062s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00059 |
| Proper Motion in Dec (J2000) | +0.015966 |
| Radial Velocity | +008.6km s-1 |
| Trigonometric Parallax | +0.00587s |
| Trigonometric Parallax Uncertainty | 0.00064s |
| GCI Unit Vector in X (J2000) | -0.243333 |
| GCI Unit Vector in Y (J2000) | -0.870311 |
| GCI Unit Vector in Z (J2000) | 0.428191 |
| Galactic Longitude | 46.01° |
Galactic Latitude
| 35.36°
|
| Observational Data |
| Observed Visual Magnitude (V) | 6.27 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 7.17 |
| Observed B-V Colour | +0.903 |
| 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 | 6.7 |
| Observed Photographic Magnitude | 7.7 |
| Morgan Keenan (MK) Spectral Type | gG5 |
| One-Dimensional Spectral Class | K0 |
| Position Angle | |
| Year of Observation | AD |
