20405+4343
- Unique Name: 20405+4343COU2540
- RA: 20 40 29.01
- Dec: +43 43 12.0
- Discoverer: COU
- Discoverer Number: 2540
- Components:
- First year: 1988
- Last year: 2008
- Observations: 2
- First position angle: 103
- Last position angle: 117
- First separation: 0.4
- Last separation: 0.4
- Mag first component: 10.9
- Mag second component: 11.7
- Spectral type:
- Primary proper motion RA: 16
- Primary proper motion DEC: 10
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +43 3678
- Notes: