| WDS ID | 16212-2536 |
| Common catalogue ID | H 4 121 |
| Components | AB |
| Other Designation | 20 sig Sco (Al Niyat) |
| Position angle | 273 |
| Separation | 20.0 |
| Mag First | 2.89 |
| Mag Second | 8.42 |
| Delta mag | 5.53 |
| Spectral Type | B0III+B8V |
| Constellation | Scorpius |
| RA | 16:21:11.3 |
| Dec | -25:35:33.9 |