| Identification Data |
| Common Name | |
| Constellation | Perseus |
| Star Name | 42 Per |
| Skymap Number | 3490094 |
| Henry Draper (HD) Number | 23848 |
| Harvard Revised (HR) Number | 1177 |
| SAO Number | 56727 |
| Durchmusterung (DM) Number | BD+32 667 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 68807 |
| Right Ascension (RA) J2000 | 3h 49m 32.689s |
| Declination (Dec) J2000 | +33° 5' 28.976" |
| Position Uncertainty | 0.0088s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00144 |
| Proper Motion in Dec (J2000) | +0.000366 |
| Radial Velocity | -014.0km s-1 |
| Trigonometric Parallax | +0.01096s |
| Trigonometric Parallax Uncertainty | 0.00081s |
| GCI Unit Vector in X (J2000) | 0.451553 |
| GCI Unit Vector in Y (J2000) | 0.705699 |
| GCI Unit Vector in Z (J2000) | 0.545976 |
| Galactic Longitude | 160.71° |
Galactic Latitude
| -16.42°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.15 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 5.20 |
| Observed B-V Colour | +0.053 |
| 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 | 5.1 |
| Observed Photographic Magnitude | 5.2 |
| Morgan Keenan (MK) Spectral Type | A3V |
| One-Dimensional Spectral Class | A2 |
| Position Angle | |
| Year of Observation | AD |
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