| Identification Data |
| Common Name | |
| Constellation | Cassiopeia |
| Star Name | 40 Cas |
| Skymap Number | 1380094 |
| Henry Draper (HD) Number | 9774 |
| Harvard Revised (HR) Number | 456 |
| SAO Number | 4453 |
| Durchmusterung (DM) Number | BD+72 86 |
Washington Double Stars (WDS) Number
| 01385+7302
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 4754 |
| Right Ascension (RA) J2000 | 1h 38m 30.917s |
| Declination (Dec) J2000 | +73° 2' 24.144" |
| Position Uncertainty | 0.0074s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00270 |
| Proper Motion in Dec (J2000) | -0.013266 |
| Radial Velocity | -004.0km s-1 |
| Trigonometric Parallax | +0.00730s |
| Trigonometric Parallax Uncertainty | 0.00070s |
| GCI Unit Vector in X (J2000) | 0.265166 |
| GCI Unit Vector in Y (J2000) | 0.121564 |
| GCI Unit Vector in Z (J2000) | 0.956509 |
| Galactic Longitude | 126.40° |
Galactic Latitude
| 10.49°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.28 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 6.25 |
| Observed B-V Colour | +0.969 |
| 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 | 5.5 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | G7III |
| One-Dimensional Spectral Class | K0 |
| Position Angle | 237 |
| Year of Observation | 1925. AD |
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