20343+4520
- Unique Name: 20343+4520ES 804BC
- RA: 20 34 21.43
- Dec: +45 20 09.1
- Discoverer: ES
- Discoverer Number: 804
- Components: BC
- First year: 1909
- Last year: 2009
- Observations: 4
- First position angle: 123
- Last position angle: 128
- First separation: 2.4
- Last separation: 2.2
- Mag first component: 11.52
- Mag second component: 12.6
- Spectral type:
- Primary proper motion RA: -8
- Primary proper motion DEC: -2
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: