| WDS ID | 17146+1423 |
| Common catalogue ID | STF 2140 |
| Components | AB |
| Other Designation | 64 alf 1,2 Her (Rasalgethi) |
| Position angle | 104 |
| Separation | 4.9 |
| Mag First | 3.48 |
| Mag Second | 5.4 |
| Delta mag | 1.92 |
| Spectral Type | M5Ib-II |
| Constellation | Hercules |
| RA | 17:14:38.9 |
| Dec | +14:23:24.9 |