Identification Data |
Common Name | |
Constellation | Hercules |
Star Name | 69 Her |
Skymap Number | 17170142 |
Henry Draper (HD) Number | 156729 |
Harvard Revised (HR) Number | 6436 |
SAO Number | 65921 |
Durchmusterung (DM) Number | BD+37 2864 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 80095 |
Right Ascension (RA) J2000 | 17h 17m 40.254s |
Declination (Dec) J2000 | +37° 17' 29.394" |
Position Uncertainty | 0.0064s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00358 |
Proper Motion in Dec (J2000) | +0.063867 |
Radial Velocity | -009.9km s-1 |
Trigonometric Parallax | +0.01834s |
Trigonometric Parallax Uncertainty | 0.00055s |
GCI Unit Vector in X (J2000) | -0.146103 |
GCI Unit Vector in Y (J2000) | -0.782033 |
GCI Unit Vector in Z (J2000) | 0.605870 |
Galactic Longitude | 61.35° |
Galactic Latitude
| 33.91°
|
Observational Data |
Observed Visual Magnitude (V) | 4.63 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 4.67 |
Observed B-V Colour | +0.038 |
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 | 4.8 |
Observed Photographic Magnitude | 4.9 |
Morgan Keenan (MK) Spectral Type | A2V |
One-Dimensional Spectral Class | A2 |
Position Angle | |
Year of Observation | AD |