| Identification Data |
| Common Name | |
| Constellation | Vulpecula |
| Star Name | 12 Vul |
| Skymap Number | 19510015 |
| Henry Draper (HD) Number | 187811 |
| Harvard Revised (HR) Number | 7565 |
| SAO Number | 87813 |
| Durchmusterung (DM) Number | BD+22 3833 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 109856 |
| Right Ascension (RA) J2000 | 19h 51m 4.108s |
| Declination (Dec) J2000 | +22° 36' 36.167" |
| Position Uncertainty | 0.0058s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00169 |
| Proper Motion in Dec (J2000) | -0.016766 |
| Radial Velocity | -025.km s-1 |
| Trigonometric Parallax | +0.00527s |
| Trigonometric Parallax Uncertainty | 0.00069s |
| GCI Unit Vector in X (J2000) | 0.430073 |
| GCI Unit Vector in Y (J2000) | -0.816842 |
| GCI Unit Vector in Z (J2000) | 0.384457 |
| Galactic Longitude | 59.73° |
Galactic Latitude
| -2.07°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.91 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
| Observed B Magnitude | 4.76 |
| Observed B-V Colour | -0.148 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.9 |
| Observed Photographic Magnitude | 4.7 |
| Morgan Keenan (MK) Spectral Type | B2.5Ve |
| One-Dimensional Spectral Class | B3 |
| Position Angle | |
| Year of Observation | AD |
