21289+1105
- Unique Name: 21289+1105STF2799AC
- RA: 21 28 52.79
- Dec: +11 05 05.2
- Discoverer: STF
- Discoverer Number: 2799
- Components: AC
- First year: 1906
- Last year: 2012
- Observations: 16
- First position angle: 338
- Last position angle: 331
- First separation: 137.1
- Last separation: 136.3
- Mag first component: 7.37
- Mag second component: 10.2
- Spectral type: F4V
- Primary proper motion RA: 74
- Primary proper motion DEC: 17
- Secondary proper motion RA: -32
- Secondary proper motion DEC: -28
- Durchmusterung:
- Notes: N
