| Identity |
| Name: | sigma Persei |
| Hipparcos catalog ID: | 16335 |
| Other star catalog entries: | HD 21552
SAO 38890
BD B+47 843
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| Appearance |
| Visual magnitude: | 4.36 (source: ground based) |
| Spectral type: | K3III |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| Right ascension | 3h 30m 34.48235s (+/-0.00002s) |
| Declination | 47° 59' 42.6191" (+/-0.0002") |
| Parallax: | 9.07 (+/-0.26) mas |
| Derived distance: | 360 light-years |
| Proper motion in R.A.: | 3.56 (+/-0.25) mas/year |
| Proper motion in declination: | 18.48 (+/-0.24) mas/year |
| Constellation: | Perseus | |