| WDS ID | 16143-0342 |
| Common catalogue ID | BUP 164 |
| Components | AB |
| Other Designation | 1 del Oph (Yed Prior) |
| Position angle | 306 |
| Separation | 68.4 |
| Mag First | 2.9 |
| Mag Second | 13.4 |
| Delta mag | 10.5 |
| Spectral Type | M0.5III |
| Constellation | Serpens |
| RA | 16:14:20.8 |
| Dec | -03:41:38.3 |