Identification Data |
Common Name | |
Constellation | Cepheus |
Star Name | 9 Cep |
Skymap Number | 21370184 |
Henry Draper (HD) Number | 206165 |
Harvard Revised (HR) Number | 8279 |
SAO Number | 19541 |
Durchmusterung (DM) Number | BD+61 2169 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 23060 |
Right Ascension (RA) J2000 | 21h 37m 55.224s |
Declination (Dec) J2000 | +62° 4' 54.983" |
Position Uncertainty | 0.0054s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00027 |
Proper Motion in Dec (J2000) | -0.002866 |
Radial Velocity | -013.2km s-1 |
Trigonometric Parallax | +0.00072s |
Trigonometric Parallax Uncertainty | 0.00049s |
GCI Unit Vector in X (J2000) | 0.381081 |
GCI Unit Vector in Y (J2000) | -0.272022 |
GCI Unit Vector in Z (J2000) | 0.883618 |
Galactic Longitude | 102.28° |
Galactic Latitude
| 7.25°
|
Observational Data |
Observed Visual Magnitude (V) | 4.79 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 5.03 |
Observed B-V Colour | +0.237 |
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 | 4.9 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | B2Ib |
One-Dimensional Spectral Class | B2 |
Position Angle | |
Year of Observation | AD |