Identification Data |
Common Name | |
Constellation | Cygnus |
Star Name | 8 Cyg |
Skymap Number | 19310184 |
Henry Draper (HD) Number | 184171 |
Harvard Revised (HR) Number | 7426 |
SAO Number | 68447 |
Durchmusterung (DM) Number | BD+34 3590 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 83069 |
Right Ascension (RA) J2000 | 19h 31m 46.321s |
Declination (Dec) J2000 | +34° 27' 10.686" |
Position Uncertainty | 0.0057s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00009 |
Proper Motion in Dec (J2000) | -0.003666 |
Radial Velocity | -020.8km s-1 |
Trigonometric Parallax | +0.00520s |
Trigonometric Parallax Uncertainty | 0.00055s |
GCI Unit Vector in X (J2000) | 0.321438 |
GCI Unit Vector in Y (J2000) | -0.759360 |
GCI Unit Vector in Z (J2000) | 0.565730 |
Galactic Longitude | 67.98° |
Galactic Latitude
| 7.44°
|
Observational Data |
Observed Visual Magnitude (V) | 4.74 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 4.60 |
Observed B-V Colour | -0.145 |
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 | 4.9 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | B3IV |
One-Dimensional Spectral Class | B3 |
Position Angle | |
Year of Observation | AD |