Identification Data |
Common Name | |
Constellation | Hercules |
Star Name | 51 Her |
Skymap Number | 16510138 |
Henry Draper (HD) Number | 152326 |
Harvard Revised (HR) Number | 6270 |
SAO Number | 84651 |
Durchmusterung (DM) Number | BD+24 3069 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 105282 |
Right Ascension (RA) J2000 | 16h 51m 45.262s |
Declination (Dec) J2000 | +24° 39' 23.158" |
Position Uncertainty | 0.0058s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00076 |
Proper Motion in Dec (J2000) | +0.005566 |
Radial Velocity | -015.7km s-1 |
Trigonometric Parallax | +0.00430s |
Trigonometric Parallax Uncertainty | 0.00066s |
GCI Unit Vector in X (J2000) | -0.266646 |
GCI Unit Vector in Y (J2000) | -0.868829 |
GCI Unit Vector in Z (J2000) | 0.417176 |
Galactic Longitude | 44.73° |
Galactic Latitude
| 36.42°
|
Observational Data |
Observed Visual Magnitude (V) | 5.03 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 6.28 |
Observed B-V Colour | +1.245 |
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 | 5.2 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | K0.5IIIaCa0.5 |
One-Dimensional Spectral Class | K0 |
Position Angle | |
Year of Observation | AD |