21221+1948
- Unique Name: 21221+1948STFB 11AC
- RA: 21 22 05.13
- Dec: +19 48 15.7
- Discoverer: STF
- Discoverer Number: 0
- Components: AC
- First year: 1912
- Last year: 2012
- Observations: 4
- First position angle: 20
- Last position angle: 12
- First separation: 75.7
- Last separation: 64.7
- Mag first component: 4.2
- Mag second component: 12.9
- Spectral type: K0.5III
- Primary proper motion RA: 106
- Primary proper motion DEC: 63
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: N