21289+1105
- Unique Name: 21289+1105STF2799AB
- RA: 21 28 52.79
- Dec: +11 05 05.2
- Discoverer: STF
- Discoverer Number: 2799
- Components: AB
- First year: 1825
- Last year: 2012
- Observations: 442
- First position angle: 338
- Last position angle: 261
- First separation: 1.2
- Last separation: 1.7
- Mag first component: 7.37
- Mag second component: 7.44
- Spectral type: F4V
- Primary proper motion RA: 71
- Primary proper motion DEC: 14
- Secondary proper motion RA: 71
- Secondary proper motion DEC: 14
- Durchmusterung: +10 4554
- Notes: NOD
