Identification Data |
Common Name | |
Constellation | Cygnus |
Star Name | 28 Cyg |
Skymap Number | 20090109 |
Henry Draper (HD) Number | 191610 |
Harvard Revised (HR) Number | 7708 |
SAO Number | 69518 |
Durchmusterung (DM) Number | BD+36 3907 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 84332 |
Right Ascension (RA) J2000 | 20h 9m 25.619s |
Declination (Dec) J2000 | +36° 50' 22.638" |
Position Uncertainty | 0.0053s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00026 |
Proper Motion in Dec (J2000) | +0.013066 |
Radial Velocity | -007.9km s-1 |
Trigonometric Parallax | +0.00379s |
Trigonometric Parallax Uncertainty | 0.00053s |
GCI Unit Vector in X (J2000) | 0.428321 |
GCI Unit Vector in Y (J2000) | -0.676053 |
GCI Unit Vector in Z (J2000) | 0.599577 |
Galactic Longitude | 73.92° |
Galactic Latitude
| 2.04°
|
Observational Data |
Observed Visual Magnitude (V) | 4.94 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 4.80 |
Observed B-V Colour | -0.142 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.8 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | B2.5Ve |
One-Dimensional Spectral Class | B2 |
Position Angle | |
Year of Observation | AD |