| 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 |
