Identification Data |
Common Name | Deneb |
Constellation | Cygnus |
Star Name | 50alp Cyg |
Skymap Number | 20410095 |
Henry Draper (HD) Number | 197345 |
Harvard Revised (HR) Number | 7924 |
SAO Number | 49941 |
Durchmusterung (DM) Number | BD+44 3541 |
Washington Double Stars (WDS) Number
| 20414+4517
|
Positional Data |
Position and Proper Motion (PPM) Number | 60323 |
Right Ascension (RA) J2000 | 20h 41m 25.914s |
Declination (Dec) J2000 | +45° 16' 49.217" |
Position Uncertainty | 0.0065s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00015 |
Proper Motion in Dec (J2000) | +0.001666 |
Radial Velocity | -004.5km s-1 |
Trigonometric Parallax | +0.00101s |
Trigonometric Parallax Uncertainty | 0.00057s |
GCI Unit Vector in X (J2000) | 0.455649 |
GCI Unit Vector in Y (J2000) | -0.536182 |
GCI Unit Vector in Z (J2000) | 0.710558 |
Galactic Longitude | 84.29° |
Galactic Latitude
| 2.00°
|
Observational Data |
Observed Visual Magnitude (V) | 1.33 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.007 |
Observed B Magnitude | 1.44 |
Observed B-V Colour | +0.112 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.010 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 1.3 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | A2Ia |
One-Dimensional Spectral Class | A2 |
Position Angle | 106 |
Year of Observation | 1924. AD |