20209-1939
- Unique Name: 20209-1939BU 662AB
- RA: 20 20 56.79
- Dec: -19 38 32.6
- Discoverer: BU
- Discoverer Number: 662
- Components: AB
- First year: 1916
- Last year: 2008
- Observations: 9
- First position angle: 3
- Last position angle: 4
- First separation: 119.7
- Last separation: 124.9
- Mag first component: 8.91
- Mag second component: 10.81
- Spectral type: K2III:
- Primary proper motion RA: -31
- Primary proper motion DEC: -45
- Secondary proper motion RA: 15
- Secondary proper motion DEC: 4
- Durchmusterung: -20 5905
- Notes:
