21592+4158
- Unique Name: 21592+4158A 406AB
- RA: 21 59 13.89
- Dec: +41 57 32.7
- Discoverer: A
- Discoverer Number: 406
- Components: AB
- First year: 1895
- Last year: 2012
- Observations: 10
- First position angle: 2
- Last position angle: 4
- First separation: 34.4
- Last separation: 33.8
- Mag first component: 7.4
- Mag second component: 10.4
- Spectral type: B9
- Primary proper motion RA: -6
- Primary proper motion DEC: -6
- Secondary proper motion RA: 5
- Secondary proper motion DEC: -9
- Durchmusterung: +41 4335
- Notes: