21420+1856
- Unique Name: 21420+1856FOX9055AC
- RA: 21 41 59.91
- Dec: +18 56 19.7
- Discoverer: FOX
- Discoverer Number: 9055
- Components: AC
- First year: 1921
- Last year: 2001
- Observations: 3
- First position angle: 270
- Last position angle: 267
- First separation: 77.0
- Last separation: 76.8
- Mag first component: 7.38
- Mag second component: 13.3
- Spectral type:
- Primary proper motion RA: -36
- Primary proper motion DEC: -46
- Secondary proper motion RA: -49
- Secondary proper motion DEC: 5
- Durchmusterung:
- Notes: N
