21573+3732
- Unique Name: 21573+3732ABH 155AJ
- RA: 21 57 18.11
- Dec: +37 31 08.3
- Discoverer: ABH
- Discoverer Number: 155
- Components: AJ
- First year: 1987
- Last year: 2009
- Observations: 4
- First position angle: 162
- Last position angle: 159
- First separation: 35.6
- Last separation: 35.6
- Mag first component: 12.05
- Mag second component: 15.4
- Spectral type: F6V
- Primary proper motion RA: -8
- Primary proper motion DEC: -3
- Secondary proper motion RA: 5
- Secondary proper motion DEC: 0
- Durchmusterung:
- Notes: U
