20402+2356
- Unique Name: 20402+2356BKO 619AC
- RA: 20 40 11.30
- Dec: +23 55 42.5
- Discoverer: BKO
- Discoverer Number: 619
- Components: AC
- First year: 2001
- Last year: 2008
- Observations: 2
- First position angle: 4
- Last position angle: 2
- First separation: 10.0
- Last separation: 11.4
- Mag first component: 8.08
- Mag second component: 14.3
- Spectral type: K0
- Primary proper motion RA: 6
- Primary proper motion DEC: -23
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: