| Identification Data |
| Common Name | |
| Constellation | Cepheus |
| Star Name | 4 Cep |
| Skymap Number | 20430042 |
| Henry Draper (HD) Number | 197950 |
| Harvard Revised (HR) Number | 7945 |
| SAO Number | 19004 |
| Durchmusterung (DM) Number | BD+66 1318 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 22346 |
| Right Ascension (RA) J2000 | 20h 43m 11.020s |
| Declination (Dec) J2000 | +66° 39' 26.810" |
| Position Uncertainty | 0.0065s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00423 |
| Proper Motion in Dec (J2000) | +0.034766 |
| Radial Velocity | -011.0km s-1 |
| Trigonometric Parallax | +0.02349s |
| Trigonometric Parallax Uncertainty | 0.00049s |
| GCI Unit Vector in X (J2000) | 0.258882 |
| GCI Unit Vector in Y (J2000) | -0.299961 |
| GCI Unit Vector in Z (J2000) | 0.918152 |
| Galactic Longitude | 101.72° |
Galactic Latitude
| 14.68°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.59 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 5.81 |
| Observed B-V Colour | +0.222 |
| 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 | 5.6 |
| Observed Photographic Magnitude | 5.7 |
| Morgan Keenan (MK) Spectral Type | A8V |
| One-Dimensional Spectral Class | A5 |
| Position Angle | |
| Year of Observation | AD |
Printer Version