Identification Data |
Common Name | |
Constellation | Hercules |
Star Name | 98 Her |
Skymap Number | 18060010 |
Henry Draper (HD) Number | 165625 |
Harvard Revised (HR) Number | 6765 |
SAO Number | 85725 |
Durchmusterung (DM) Number | BD+22 3273 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 106771 |
Right Ascension (RA) J2000 | 18h 6m 1.900s |
Declination (Dec) J2000 | +22° 13' 7.965" |
Position Uncertainty | 0.0059s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00096 |
Proper Motion in Dec (J2000) | -0.005366 |
Radial Velocity | -019.9km s-1 |
Trigonometric Parallax | +0.00530s |
Trigonometric Parallax Uncertainty | 0.00065s |
GCI Unit Vector in X (J2000) | 0.024361 |
GCI Unit Vector in Y (J2000) | -0.925425 |
GCI Unit Vector in Z (J2000) | 0.378146 |
Galactic Longitude | 48.54° |
Galactic Latitude
| 19.55°
|
Observational Data |
Observed Visual Magnitude (V) | 4.99 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 6.63 |
Observed B-V Colour | +1.637 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.005 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 5.3 |
Observed Photographic Magnitude | 6.7 |
Morgan Keenan (MK) Spectral Type | M3-SIII |
One-Dimensional Spectral Class | M0 |
Position Angle | |
Year of Observation | AD |