21592+4158
- Unique Name: 21592+4158A 406AD
- RA: 21 59 13.89
- Dec: +41 57 32.7
- Discoverer: A
- Discoverer Number: 406
- Components: AD
- First year: 1902
- Last year: 2012
- Observations: 5
- First position angle: 115
- Last position angle: 116
- First separation: 22.5
- Last separation: 22.7
- Mag first component: 7.4
- Mag second component: 13.4
- Spectral type: B9
- Primary proper motion RA: -6
- Primary proper motion DEC: -6
- Secondary proper motion RA: -6
- Secondary proper motion DEC: -9
- Durchmusterung:
- Notes: