20209-1939
- Unique Name: 20209-1939BU 662BC
- RA: 20 20 57.40
- Dec: -19 36 28.6
- Discoverer: BU
- Discoverer Number: 662
- Components: BC
- First year: 1878
- Last year: 1943
- Observations: 9
- First position angle: 300
- Last position angle: 294
- First separation: 1.7
- Last separation: 2.1
- Mag first component: 10.81
- Mag second component: 13.0
- Spectral type: G
- Primary proper motion RA: 15
- Primary proper motion DEC: 2
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: -20 5904
- Notes:
