Identification Data |
Common Name | |
Constellation | Vulpecula |
Star Name | 21 Vul |
Skymap Number | 20140060 |
Henry Draper (HD) Number | 192518 |
Harvard Revised (HR) Number | 7731 |
SAO Number | 88391 |
Durchmusterung (DM) Number | BD+28 3675 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 110713 |
Right Ascension (RA) J2000 | 20h 14m 14.529s |
Declination (Dec) J2000 | +28° 41' 41.342" |
Position Uncertainty | 0.0044s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00093 |
Proper Motion in Dec (J2000) | -0.019066 |
Radial Velocity | +007.0km s-1 |
Trigonometric Parallax | +0.00997s |
Trigonometric Parallax Uncertainty | 0.00058s |
GCI Unit Vector in X (J2000) | 0.484926 |
GCI Unit Vector in Y (J2000) | -0.730964 |
GCI Unit Vector in Z (J2000) | 0.480144 |
Galactic Longitude | 67.66° |
Galactic Latitude
| -3.27°
|
Observational Data |
Observed Visual Magnitude (V) | 5.20 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 5.38 |
Observed B-V Colour | +0.182 |
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 | 5.3 |
Morgan Keenan (MK) Spectral Type | A7IVn |
One-Dimensional Spectral Class | A3 |
Position Angle | |
Year of Observation | AD |