21596+5223
- Unique Name: 21596+5223HU 775AC
- RA: 21 59 35.80
- Dec: +52 23 08.2
- Discoverer: HU
- Discoverer Number: 775
- Components: AC
- First year: 1916
- Last year: 2010
- Observations: 6
- First position angle: 177
- Last position angle: 177
- First separation: 16.3
- Last separation: 16.4
- Mag first component: 9.65
- Mag second component: 11.3
- Spectral type: B5
- Primary proper motion RA: -1
- Primary proper motion DEC: 1
- Secondary proper motion RA: -3
- Secondary proper motion DEC: -8
- Durchmusterung:
- Notes: