20231+4047
- Unique Name: 20231+4047J 787AC
- RA: 20 23 07.30
- Dec: +40 46 55.2
- Discoverer: J
- Discoverer Number: 787
- Components: AC
- First year: 1917
- Last year: 2003
- Observations: 4
- First position angle: 107
- Last position angle: 112
- First separation: 9.0
- Last separation: 9.5
- Mag first component: 9.4
- Mag second component: 12.5
- Spectral type:
- Primary proper motion RA: -6
- Primary proper motion DEC: -2
- Secondary proper motion RA: 8
- Secondary proper motion DEC: -11
- Durchmusterung:
- Notes: N
