| Identity |
| Name: | tau Persei |
| Hipparcos catalog ID: | 13531 |
| Other star catalog entries: | HD 17878
SAO 23685
BD B+52 641
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| |
| Appearance |
| Visual magnitude: | 3.93 (source: Hipparcos) |
| Spectral type: | G4III... |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| Right ascension | 2h 54m 15.46229s (+/-0.00003s) |
| Declination | 52° 45' 44.9622" (+/-0.0002") |
| Parallax: | 12.83 (+/-0.36) mas |
| Derived distance: | 254 light-years |
| Proper motion in R.A.: | -1.26 (+/-0.28) mas/year |
| Proper motion in declination: | -4.37 (+/-0.29) mas/year |
| Constellation: | Perseus | |