| 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 |
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