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 |