21543+1943
- Unique Name: 21543+1943STF2841A,BC
- RA: 21 54 17.44
- Dec: +19 43 05.3
- Discoverer: STF
- Discoverer Number: 2841
- Components: A,BC
- First year: 1823
- Last year: 2012
- Observations: 74
- First position angle: 110
- Last position angle: 110
- First separation: 22.1
- Last separation: 22.4
- Mag first component: 6.45
- Mag second component: 7.99
- Spectral type: K0III F7V
- Primary proper motion RA: -34
- Primary proper motion DEC: -12
- Secondary proper motion RA: -33
- Secondary proper motion DEC: -12
- Durchmusterung: +19 4814
- Notes: NYD
