21555+5232
- Unique Name: 21555+5232STT 456AB
- RA: 21 55 31.59
- Dec: +52 31 40.7
- Discoverer: STT
- Discoverer Number: 456
- Components: AB
- First year: 1847
- Last year: 2011
- Observations: 69
- First position angle: 28
- Last position angle: 36
- First separation: 1.3
- Last separation: 1.5
- Mag first component: 8.25
- Mag second component: 8.93
- Spectral type: F2V
- Primary proper motion RA: -10
- Primary proper motion DEC: -4
- Secondary proper motion RA: -10
- Secondary proper motion DEC: -4
- Durchmusterung: +51 3187
- Notes: Z
