| Identification Data |
| Common Name | |
| Constellation | Cassiopeia |
| Star Name | 9 Cas |
| Skymap Number | 40021 |
| Henry Draper (HD) Number | 225180 |
| Harvard Revised (HR) Number | 9100 |
| SAO Number | 10954 |
| Durchmusterung (DM) Number | BD+61 2586 |
Washington Double Stars (WDS) Number
| 00042+6217
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 11903 |
| Right Ascension (RA) J2000 | 0h 4m 13.662s |
| Declination (Dec) J2000 | +62° 17' 15.589" |
| Position Uncertainty | 0.0059s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00014 |
| Proper Motion in Dec (J2000) | -0.000466 |
| Radial Velocity | -017.7km s-1 |
| Trigonometric Parallax | +0.00089s |
| Trigonometric Parallax Uncertainty | 0.00058s |
| GCI Unit Vector in X (J2000) | 0.464954 |
| GCI Unit Vector in Y (J2000) | 0.008578 |
| GCI Unit Vector in Z (J2000) | 0.885294 |
| Galactic Longitude | 117.48° |
Galactic Latitude
| -0.08°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.90 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 6.17 |
| Observed B-V Colour | +0.266 |
| 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 | 6.0 |
| Observed Photographic Magnitude | 6.0 |
| Morgan Keenan (MK) Spectral Type | A1III |
| One-Dimensional Spectral Class | A0 |
| Position Angle | 196 |
| Year of Observation | 1904. AD |
