| Identification Data |
| Common Name | |
| Constellation | Hercules |
| Star Name | 20gam Her |
| Skymap Number | 16210164 |
| Henry Draper (HD) Number | 147547 |
| Harvard Revised (HR) Number | 6095 |
| SAO Number | 102107 |
| Durchmusterung (DM) Number | BD+19 3086 |
Washington Double Stars (WDS) Number
| 16219+1909
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 132244 |
| Right Ascension (RA) J2000 | 16h 21m 55.214s |
| Declination (Dec) J2000 | +19° 9' 11.269" |
| Position Uncertainty | 0.0088s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00335 |
| Proper Motion in Dec (J2000) | +0.044666 |
| Radial Velocity | -035.3km s-1 |
| Trigonometric Parallax | +0.01669s |
| Trigonometric Parallax Uncertainty | 0.00073s |
| GCI Unit Vector in X (J2000) | -0.392037 |
| GCI Unit Vector in Y (J2000) | -0.859454 |
| GCI Unit Vector in Z (J2000) | 0.328094 |
| Galactic Longitude | 35.26° |
Galactic Latitude
| 41.30°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.74 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.03 |
| Observed B-V Colour | +0.292 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 3.8 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | A9III |
| One-Dimensional Spectral Class | F0 |
| Position Angle | 233 |
| Year of Observation | 1938. AD |
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