Identification Data |
Common Name | |
Constellation | Hercules |
Star Name | 70 Her |
Skymap Number | 17200183 |
Henry Draper (HD) Number | 157198 |
Harvard Revised (HR) Number | 6457 |
SAO Number | 85021 |
Durchmusterung (DM) Number | BD+24 3167 |
Washington Double Stars (WDS) Number
| 17209+2430
|
Positional Data |
Position and Proper Motion (PPM) Number | 105806 |
Right Ascension (RA) J2000 | 17h 20m 54.206s |
Declination (Dec) J2000 | +24° 29' 57.967" |
Position Uncertainty | 0.0067s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00142 |
Proper Motion in Dec (J2000) | -0.001966 |
Radial Velocity | -018.0km s-1 |
Trigonometric Parallax | +0.00705s |
Trigonometric Parallax Uncertainty | 0.00071s |
GCI Unit Vector in X (J2000) | -0.154480 |
GCI Unit Vector in Y (J2000) | -0.896757 |
GCI Unit Vector in Z (J2000) | 0.414684 |
Galactic Longitude | 46.93° |
Galactic Latitude
| 30.05°
|
Observational Data |
Observed Visual Magnitude (V) | 5.13 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 5.13 |
Observed B-V Colour | -0.003 |
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 | 5.1 |
Observed Photographic Magnitude | 5.1 |
Morgan Keenan (MK) Spectral Type | A2V |
One-Dimensional Spectral Class | A0 |
Position Angle | 56 |
Year of Observation | 1982. AD |