| Identity |
| Name: | tau Eridani |
| Hipparcos catalog ID: | 17651 |
| Other star catalog entries: | HD 23754
SAO 168827
CoD C-23 1565
CPD P-23 414
|
| |
| Appearance |
| Visual magnitude: | 4.22 (source: ground based) |
| Spectral type: | F3/F5V |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| Right ascension | 3h 46m 50.98904s (+/-0.00001s) |
| Declination | -23° 14' 54.3763" (+/-0.0001") |
| Parallax: | 56.73 (+/-0.19) mas |
| Derived distance: | 57.5 light-years |
| Proper motion in R.A.: | -158.84 (+/-0.12) mas/year |
| Proper motion in declination: | -528.95 (+/-0.15) mas/year |
| Constellation: | Eridanus | |