| WDS ID | 03475+2406 |
| Common catalogue ID | STFA 8 |
| Components | AB |
| Other Designation | 25 eta Tau (Alcyone, A), V647 Tau (C) |
| Position angle | 290 |
| Separation | 117.3 |
| Mag First | 2.83 |
| Mag Second | 6.27 |
| Delta mag | 3.44 |
| Spectral Type | B7IIIe |
| Constellation | Taurus |
| RA | 03:47:29.1 |
| Dec | +24:06:18.8 |