Identification Data |
Common Name | |
Constellation | Hercules |
Star Name | 103omi Her |
Skymap Number | 18070122 |
Henry Draper (HD) Number | 166014 |
Harvard Revised (HR) Number | 6779 |
SAO Number | 85750 |
Durchmusterung (DM) Number | BD+28 2925 |
Washington Double Stars (WDS) Number
| 18075+2846
|
Positional Data |
Position and Proper Motion (PPM) Number | 106802 |
Right Ascension (RA) J2000 | 18h 7m 32.550s |
Declination (Dec) J2000 | +28° 45' 44.959" |
Position Uncertainty | 0.0059s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00001 |
Proper Motion in Dec (J2000) | +0.007566 |
Radial Velocity | -029.5km s-1 |
Trigonometric Parallax | +0.00939s |
Trigonometric Parallax Uncertainty | 0.00057s |
GCI Unit Vector in X (J2000) | 0.028845 |
GCI Unit Vector in Y (J2000) | -0.876147 |
GCI Unit Vector in Z (J2000) | 0.481180 |
Galactic Longitude | 55.19° |
Galactic Latitude
| 21.59°
|
Observational Data |
Observed Visual Magnitude (V) | 3.84 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 3.82 |
Observed B-V Colour | -0.018 |
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 | 3.8 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | B9.5V |
One-Dimensional Spectral Class | A0 |
Position Angle | 107 |
Year of Observation | 1981. AD |