| Identification Data |
| Common Name | |
| Constellation | Hercules |
| Star Name | 4 Her |
| Skymap Number | 15550080 |
| Henry Draper (HD) Number | 142926 |
| Harvard Revised (HR) Number | 5938 |
| SAO Number | 45790 |
| Durchmusterung (DM) Number | BD+42 2652 |
Washington Double Stars (WDS) Number
|
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| Positional Data |
| Position and Proper Motion (PPM) Number | 55045 |
| Right Ascension (RA) J2000 | 15h 55m 30.592s |
| Declination (Dec) J2000 | +42° 33' 58.295" |
| Position Uncertainty | 0.0064s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00211 |
| Proper Motion in Dec (J2000) | +0.016866 |
| Radial Velocity | -017.1km s-1 |
| Trigonometric Parallax | +0.00677s |
| Trigonometric Parallax Uncertainty | 0.00053s |
| GCI Unit Vector in X (J2000) | -0.380673 |
| GCI Unit Vector in Y (J2000) | -0.630488 |
| GCI Unit Vector in Z (J2000) | 0.676442 |
| Galactic Longitude | 67.76° |
Galactic Latitude
| 49.78°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.75 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.007 |
| Observed B Magnitude | 5.65 |
| Observed B-V Colour | -0.105 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.009 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.6 |
| Observed Photographic Magnitude | 5.6 |
| Morgan Keenan (MK) Spectral Type | B9pe |
| One-Dimensional Spectral Class | B8 |
| Position Angle | |
| Year of Observation | AD |
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