| Identification Data |
| Common Name | |
| Constellation | Perseus |
| Star Name | 4 Per |
| Skymap Number | 2020046 |
| Henry Draper (HD) Number | 12303 |
| Harvard Revised (HR) Number | 590 |
| SAO Number | 22859 |
| Durchmusterung (DM) Number | BD+53 439 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 27040 |
| Right Ascension (RA) J2000 | 2h 2m 18.108s |
| Declination (Dec) J2000 | +54° 29' 15.148" |
| Position Uncertainty | 0.0057s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00388 |
| Proper Motion in Dec (J2000) | -0.003466 |
| Radial Velocity | -002.0km s-1 |
| Trigonometric Parallax | +0.00441s |
| Trigonometric Parallax Uncertainty | 0.00062s |
| GCI Unit Vector in X (J2000) | 0.500114 |
| GCI Unit Vector in Y (J2000) | 0.295478 |
| GCI Unit Vector in Z (J2000) | 0.813989 |
| Galactic Longitude | 133.19° |
Galactic Latitude
| -6.97°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.00 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.93 |
| Observed B-V Colour | -0.074 |
| 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 | 5.0 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | B8III |
| One-Dimensional Spectral Class | B8 |
| Position Angle | |
| Year of Observation | AD |
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