Identification Data |
Common Name | |
Constellation | Cygnus |
Star Name | 22 Cyg |
Skymap Number | 19550194 |
Henry Draper (HD) Number | 188892 |
Harvard Revised (HR) Number | 7613 |
SAO Number | 69101 |
Durchmusterung (DM) Number | BD+38 3817 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 83837 |
Right Ascension (RA) J2000 | 19h 55m 51.762s |
Declination (Dec) J2000 | +38° 29' 12.139" |
Position Uncertainty | 0.0054s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00012 |
Proper Motion in Dec (J2000) | +0.000666 |
Radial Velocity | -031.3km s-1 |
Trigonometric Parallax | +0.00271s |
Trigonometric Parallax Uncertainty | 0.00054s |
GCI Unit Vector in X (J2000) | 0.379076 |
GCI Unit Vector in Y (J2000) | -0.684838 |
GCI Unit Vector in Z (J2000) | 0.622333 |
Galactic Longitude | 73.90° |
Galactic Latitude
| 5.19°
|
Observational Data |
Observed Visual Magnitude (V) | 4.95 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 4.86 |
Observed B-V Colour | -0.093 |
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 | 4.7 |
Morgan Keenan (MK) Spectral Type | B5IV |
One-Dimensional Spectral Class | B3 |
Position Angle | |
Year of Observation | AD |