Identification Data |
Common Name | |
Constellation | Cygnus |
Star Name | 25 Cyg |
Skymap Number | 19590212 |
Henry Draper (HD) Number | 189687 |
Harvard Revised (HR) Number | 7647 |
SAO Number | 69231 |
Durchmusterung (DM) Number | BD+36 3806 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 83988 |
Right Ascension (RA) J2000 | 19h 59m 55.195s |
Declination (Dec) J2000 | +37° 2' 34.388" |
Position Uncertainty | 0.0046s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00003 |
Proper Motion in Dec (J2000) | -0.000266 |
Radial Velocity | -003.0km s-1 |
Trigonometric Parallax | +0.00207s |
Trigonometric Parallax Uncertainty | 0.00050s |
GCI Unit Vector in X (J2000) | 0.398851 |
GCI Unit Vector in Y (J2000) | -0.691388 |
GCI Unit Vector in Z (J2000) | 0.602413 |
Galactic Longitude | 73.08° |
Galactic Latitude
| 3.76°
|
Observational Data |
Observed Visual Magnitude (V) | 5.15 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 5.02 |
Observed B-V Colour | -0.135 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 5.2 |
Observed Photographic Magnitude | 5.0 |
Morgan Keenan (MK) Spectral Type | B3IVe |
One-Dimensional Spectral Class | B3 |
Position Angle | |
Year of Observation | AD |