20403+2357
- Unique Name: 20403+2357POU4841AB
- RA: 20 40 16.56
- Dec: +23 57 01.7
- Discoverer: POU
- Discoverer Number: 4841
- Components: AB
- First year: 1899
- Last year: 2008
- Observations: 4
- First position angle: 356
- Last position angle: 348
- First separation: 11.4
- Last separation: 12.6
- Mag first component: 13.8
- Mag second component: 14.7
- Spectral type:
- Primary proper motion RA: 18
- Primary proper motion DEC: -10
- Secondary proper motion RA: 5
- Secondary proper motion DEC: 9
- Durchmusterung:
- Notes: