| Identification Data |
| Common Name | Azelfafage |
| Constellation | Cygnus |
| Star Name | 80pi 1Cyg |
| Skymap Number | 21420019 |
| Henry Draper (HD) Number | 206672 |
| Harvard Revised (HR) Number | 8301 |
| SAO Number | 33665 |
| Durchmusterung (DM) Number | BD+50 3410 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 39758 |
| Right Ascension (RA) J2000 | 21h 42m 5.664s |
| Declination (Dec) J2000 | +51° 11' 22.639" |
| Position Uncertainty | 0.0061s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00056 |
| Proper Motion in Dec (J2000) | -0.002166 |
| Radial Velocity | -008.2km s-1 |
| Trigonometric Parallax | +0.00194s |
| Trigonometric Parallax Uncertainty | 0.00053s |
| GCI Unit Vector in X (J2000) | 0.516663 |
| GCI Unit Vector in Y (J2000) | -0.354779 |
| GCI Unit Vector in Z (J2000) | 0.779224 |
| Galactic Longitude | 95.49° |
Galactic Latitude
| -1.30°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.68 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.56 |
| Observed B-V Colour | -0.121 |
| 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 | 4.8 |
| Observed Photographic Magnitude | 4.6 |
| Morgan Keenan (MK) Spectral Type | B3IV |
| One-Dimensional Spectral Class | B3 |
| Position Angle | 68 |
| Year of Observation | 1992. AD |
