21573+3732
- Unique Name: 21573+3732ABH 155AH
- RA: 21 57 18.11
- Dec: +37 31 08.3
- Discoverer: ABH
- Discoverer Number: 155
- Components: AH
- First year: 1987
- Last year: 2009
- Observations: 4
- First position angle: 66
- Last position angle: 65
- First separation: 105.8
- Last separation: 105.9
- Mag first component: 12.05
- Mag second component: 13.9
- Spectral type: F6V
- Primary proper motion RA: -8
- Primary proper motion DEC: -3
- Secondary proper motion RA: -3
- Secondary proper motion DEC: -5
- Durchmusterung:
- Notes: U
