Identification Data |
Common Name | |
Constellation | Hercules |
Star Name | 108 Her |
Skymap Number | 18200216 |
Henry Draper (HD) Number | 168913 |
Harvard Revised (HR) Number | 6876 |
SAO Number | 85956 |
Durchmusterung (DM) Number | BD+29 3241 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 107113 |
Right Ascension (RA) J2000 | 18h 20m 56.969s |
Declination (Dec) J2000 | +29° 51' 32.131" |
Position Uncertainty | 0.0066s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00005 |
Proper Motion in Dec (J2000) | +0.054166 |
Radial Velocity | -020.2km s-1 |
Trigonometric Parallax | +0.01736s |
Trigonometric Parallax Uncertainty | 0.00060s |
GCI Unit Vector in X (J2000) | 0.079165 |
GCI Unit Vector in Y (J2000) | -0.863633 |
GCI Unit Vector in Z (J2000) | 0.497866 |
Galactic Longitude | 57.37° |
Galactic Latitude
| 19.23°
|
Observational Data |
Observed Visual Magnitude (V) | 5.61 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 5.85 |
Observed B-V Colour | +0.243 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 5.5 |
Observed Photographic Magnitude | 5.6 |
Morgan Keenan (MK) Spectral Type | A5m |
One-Dimensional Spectral Class | A2 |
Position Angle | |
Year of Observation | AD |