| Identification Data |
| Common Name | |
| Constellation | Cassiopeia |
| Star Name | 42 Cas |
| Skymap Number | 1420145 |
| Henry Draper (HD) Number | 10250 |
| Harvard Revised (HR) Number | 480 |
| SAO Number | 4470 |
| Durchmusterung (DM) Number | BD+69 114 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 4775 |
| Right Ascension (RA) J2000 | 1h 42m 55.863s |
| Declination (Dec) J2000 | +70° 37' 21.093" |
| Position Uncertainty | 0.0056s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.01540 |
| Proper Motion in Dec (J2000) | -0.013666 |
| Radial Velocity | +006.6km s-1 |
| Trigonometric Parallax | +0.01162s |
| Trigonometric Parallax Uncertainty | 0.00054s |
| GCI Unit Vector in X (J2000) | 0.298886 |
| GCI Unit Vector in Y (J2000) | 0.144055 |
| GCI Unit Vector in Z (J2000) | 0.943353 |
| Galactic Longitude | 127.22° |
Galactic Latitude
| 8.18°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.18 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 5.15 |
| Observed B-V Colour | -0.025 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.002 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.3 |
| Observed Photographic Magnitude | 5.3 |
| Morgan Keenan (MK) Spectral Type | B9V |
| One-Dimensional Spectral Class | A0 |
| Position Angle | |
| Year of Observation | AD |
