21549-7720
- Unique Name: 21549-7720SKF 106AC
- RA: 21 54 51.31
- Dec: -77 20 16.8
- Discoverer: SKF
- Discoverer Number: 106
- Components: AC
- First year: 1894
- Last year: 1999
- Observations: 6
- First position angle: 290
- Last position angle: 309
- First separation: 7.0
- Last separation: 7.7
- Mag first component: 8.4
- Mag second component: 12.1
- Spectral type: K3V M2.5V
- Primary proper motion RA: 224
- Primary proper motion DEC: -186
- Secondary proper motion RA: 14
- Secondary proper motion DEC: -18
- Durchmusterung: -77 1522
- Notes: