| A | |
| B | pa=191.6° sep=159.54" |
| Componente originario normalizzato | AB | Name | Alp Per | Common name | Mirfak | Meaning | elbow | ||||
| Other names | Mirphak, Marfak, Mirzac, Algeneb, Algenib, Elgenab, Genib, Chenib, Alchemb | Coord arcsec 2000 | 032419.35+495140.5 | Mag | 1.87 | Spectral class | F5Ib (yellow-white) | ||||
| PmRA | 24.00 | PmDE | -25.0 | SAO | 38787 | HIP | 15863 | ||||
| Tycho2 | 3320-02808-1 | HD | 20902 | HR | 1017 | GC | 4041 | ||||
| BD | BD+49 917 | Bayer | Alpha Persei | Bayer name | Alp Per | Flamsteed | 33 Persei | ||||
| Flamsteed name | 33 Per | FK5 | 120 |
| SAO | 38787 | DelFlag | RA1950 | PmRA1950 | 0.0026 | ||||||
| DE1950 | PmDE1950 | -0.022 | Vmag | 1.9 | SpType | F5 | |||||
| Double code | Source | 74 | CatNum | 120 | DM | BD+49 917 | |||||
| DMcomp | BDsup | HD | 20902 | M HD | 0 | ||||||
| GC | 4041 | RA1950rad | 0.87589645 | DE1950rad | 0.86716703 | PmRA2000 | 0.0025 | ||||
| PmDE2000 | -0.025 |
| Catalog | H | HIP | 15863 | Proxy | RAhms | 03 24 19.35 | |||||
| DEdms | +49 51 40.5 | Vmag | 1.79 | VarFlag | 1 | R Vmag | G | ||||
| RAdeg | 51.0806 | DEdeg | 49.8612 | AstroRef | Plx | 5.51 | |||||
| CCDM | 03243+4951 | N CCDM | I | Nsys | 1 | Ncomp | 1 | ||||
| MultFlag | Source | Qual | M HIP | ||||||||
| Theta | Rho | HD | 20902 | BD | BD+49 917 | ||||||
| CD | CP | Dm number | +49 917 | VIred | 0.63 | ||||||
| SpType | F5Ib | R SpType | Coord arcsec 2000 | 032419.35+495140.5 |
| HIP | 15863 | Sn | 5 | So | 0 | Nc | 1 | ||||
| RArad | 0.8915249885 | DErad | 0.8702428603 | Plx | 6.44 | PmRA | 23.75 | ||||
| PmDE | -26.23 | E RArad | 0.15 | E DErad | 0.11 | E Plx | 0.17 | ||||
| E pmRA | 0.16 | E pmDE | 0.15 | Hpmag | 1.8972 | E Hpmag | 0.0008 | ||||
| SHp | 0.005 | VA | 0 | BV | 0.481 | E BV | 0.004 | ||||
| VI | 0.63 |
| Componente originario normalizzato | AB | Coord arcsec 2000 | 032416.04+494904.2 | Mag | 12.81 | PmRA | 0.00 | ||||
| PmDE | 3.0 | Calc delta mag | 10.94 | Calc coord | yes |