| Identification Data |
| Common Name | |
| Constellation | Hercules |
| Star Name | 109 Her |
| Skymap Number | 18230130 |
| Henry Draper (HD) Number | 169414 |
| Harvard Revised (HR) Number | 6895 |
| SAO Number | 86003 |
| Durchmusterung (DM) Number | BD+21 3411 |
Washington Double Stars (WDS) Number
| 18237+2146
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 107183 |
| Right Ascension (RA) J2000 | 18h 23m 41.889s |
| Declination (Dec) J2000 | +21° 46' 11.107" |
| Position Uncertainty | 0.0055s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.01404 |
| Proper Motion in Dec (J2000) | -0.242966 |
| Radial Velocity | -057.3km s-1 |
| Trigonometric Parallax | +0.02540s |
| Trigonometric Parallax Uncertainty | 0.00065s |
| GCI Unit Vector in X (J2000) | 0.095857 |
| GCI Unit Vector in Y (J2000) | -0.923721 |
| GCI Unit Vector in Z (J2000) | 0.370878 |
| Galactic Longitude | 49.77° |
Galactic Latitude
| 15.60°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.85 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 5.02 |
| Observed B-V Colour | +1.174 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.002 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 3.9 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | K2IIIab |
| One-Dimensional Spectral Class | K0 |
| Position Angle | 321 |
| Year of Observation | 1923. AD |
