| Identification Data |
| Common Name | |
| Constellation | Hercules |
| Star Name | 91the Her |
| Skymap Number | 17560061 |
| Henry Draper (HD) Number | 163770 |
| Harvard Revised (HR) Number | 6695 |
| SAO Number | 66485 |
| Durchmusterung (DM) Number | BD+37 2982 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 80751 |
| Right Ascension (RA) J2000 | 17h 56m 15.180s |
| Declination (Dec) J2000 | +37° 15' 1.941" |
| Position Uncertainty | 0.0065s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00023 |
| Proper Motion in Dec (J2000) | +0.007266 |
| Radial Velocity | -027.9km s-1 |
| Trigonometric Parallax | +0.00487s |
| Trigonometric Parallax Uncertainty | 0.00054s |
| GCI Unit Vector in X (J2000) | -0.013013 |
| GCI Unit Vector in Y (J2000) | -0.795890 |
| GCI Unit Vector in Z (J2000) | 0.605301 |
| Galactic Longitude | 63.26° |
Galactic Latitude
| 26.42°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.84 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 5.18 |
| Observed B-V Colour | +1.345 |
| 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 | 4.0 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | K1IIaCN2 |
| One-Dimensional Spectral Class | K0 |
| Position Angle | |
| Year of Observation | AD |
