| Identification Data |
| Common Name | Mirphak |
| Constellation | Perseus |
| Star Name | 33alp Per |
| Skymap Number | 3240048 |
| Henry Draper (HD) Number | 20902 |
| Harvard Revised (HR) Number | 1017 |
| SAO Number | 38787 |
| Durchmusterung (DM) Number | BD+49 917 |
Washington Double Stars (WDS) Number
| 03243+4952
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 46127 |
| Right Ascension (RA) J2000 | 3h 24m 19.370s |
| Declination (Dec) J2000 | +49° 51' 40.247" |
| Position Uncertainty | 0.0065s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00249 |
| Proper Motion in Dec (J2000) | -0.026066 |
| Radial Velocity | -002.3km s-1 |
| Trigonometric Parallax | +0.00551s |
| Trigonometric Parallax Uncertainty | 0.00066s |
| GCI Unit Vector in X (J2000) | 0.404980 |
| GCI Unit Vector in Y (J2000) | 0.501552 |
| GCI Unit Vector in Z (J2000) | 0.764485 |
| Galactic Longitude | 146.57° |
Galactic Latitude
| -5.86°
|
| Observational Data |
| Observed Visual Magnitude (V) | 1.81 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
| Observed B Magnitude | 2.32 |
| Observed B-V Colour | +0.512 |
| 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 | 1.9 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | F5Ib |
| One-Dimensional Spectral Class | F5 |
| Position Angle | 196 |
| Year of Observation | 1924. AD |
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