20571+3920
- Unique Name: 20571+3920BKO 473
- RA: 20 57 06.73
- Dec: +39 20 25.6
- Discoverer: BKO
- Discoverer Number: 473
- Components:
- First year: 1998
- Last year: 2008
- Observations: 3
- First position angle: 34
- Last position angle: 34
- First separation: 5.2
- Last separation: 5.3
- Mag first component: 13.5
- Mag second component: 13.5
- Spectral type:
- Primary proper motion RA: -11
- Primary proper motion DEC: -26
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: