| Identification Data |
| Common Name | |
| Constellation | Cygnus |
| Star Name | 78mu 2Cyg |
| Skymap Number | 21440198 |
| Henry Draper (HD) Number | 206827 |
| Harvard Revised (HR) Number | 8310 |
| SAO Number | 89939 |
| Durchmusterung (DM) Number | BD+28 4169 |
Washington Double Stars (WDS) Number
| 21441+2845
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 400287 |
| Right Ascension (RA) J2000 | 21h 44m 8.460s |
| Declination (Dec) J2000 | +28° 44' 34.623" |
| Position Uncertainty | 0.0197s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.02114 |
| Proper Motion in Dec (J2000) | -0.232967 |
| Radial Velocity | +018.0km s-1 |
| Trigonometric Parallax | +0.04464s |
| Trigonometric Parallax Uncertainty | 0.00069s |
| GCI Unit Vector in X (J2000) | 0.727190 |
| GCI Unit Vector in Y (J2000) | -0.489845 |
| GCI Unit Vector in Z (J2000) | 0.480881 |
| Galactic Longitude | 80.59° |
Galactic Latitude
| -18.34°
|
| Observational Data |
| Observed Visual Magnitude (V) | 6.11 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.050 |
| Observed B Magnitude | 6.68 |
| Observed B-V Colour | +0.57 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.050 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 6.1 |
| Observed Photographic Magnitude | 6.5 |
| Morgan Keenan (MK) Spectral Type | G2V |
| One-Dimensional Spectral Class | F5 |
| Position Angle | 305 |
| Year of Observation | 1994. AD |
