21404+5735
- Unique Name: 21404+5735STF2819
- RA: 21 40 21.45
- Dec: +57 34 53.7
- Discoverer: STF
- Discoverer Number: 2819
- Components:
- First year: 1782
- Last year: 2011
- Observations: 40
- First position angle: 58
- Last position angle: 58
- First separation: 13.1
- Last separation: 12.8
- Mag first component: 7.44
- Mag second component: 8.64
- Spectral type: F5V
- Primary proper motion RA: -48
- Primary proper motion DEC: -17
- Secondary proper motion RA: -39
- Secondary proper motion DEC: -20
- Durchmusterung: +56 2623
- Notes: NVD
