20403+2357
- Unique Name: 20403+2357BKO 620AC
- RA: 20 40 16.56
- Dec: +23 57 01.7
- Discoverer: BKO
- Discoverer Number: 620
- Components: AC
- First year: 2000
- Last year: 2008
- Observations: 3
- First position angle: 334
- Last position angle: 334
- First separation: 6.7
- Last separation: 7.2
- Mag first component: 13.8
- Mag second component: 15.8
- Spectral type:
- Primary proper motion RA: 18
- Primary proper motion DEC: -10
- Secondary proper motion RA: -6
- Secondary proper motion DEC: -109
- Durchmusterung:
- Notes: