21543+1943
- Unique Name: 21543+1943COU 432BC
- RA: 21 54 17.44
- Dec: +19 43 05.3
- Discoverer: COU
- Discoverer Number: 432
- Components: BC
- First year: 1969
- Last year: 2008
- Observations: 26
- First position angle: 29
- Last position angle: 359
- First separation: 0.2
- Last separation: 0.2
- Mag first component: 8.8
- Mag second component: 9.0
- Spectral type:
- Primary proper motion RA: -44
- Primary proper motion DEC: -8
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: NO
