21105+2227
- Unique Name: 21105+2227STF2769AB
- RA: 21 10 32.07
- Dec: +22 27 16.7
- Discoverer: STF
- Discoverer Number: 2769
- Components: AB
- First year: 1825
- Last year: 2013
- Observations: 78
- First position angle: 301
- Last position angle: 299
- First separation: 17.7
- Last separation: 18.1
- Mag first component: 6.65
- Mag second component: 7.42
- Spectral type: A1V
- Primary proper motion RA: 25
- Primary proper motion DEC: -12
- Secondary proper motion RA: 24
- Secondary proper motion DEC: -11
- Durchmusterung: +21 4486
- Notes: N D
