| WDS ID | 17304+5218 |
| Common catalogue ID | BU 1090 |
| Components | AB |
| Other Designation | 23 bet Dra (Rastaban) |
| Position angle | 12 |
| Separation | 4.4 |
| Mag First | 2.79 |
| Mag Second | 14.0 |
| Delta mag | 11.21 |
| Spectral Type | G2Ib-IIa |
| Constellation | Draco |
| RA | 17:30:26.0 |
| Dec | +52:18:04.9 |