20166+3651
- Unique Name: 20166+3651SEI1059
- RA: 20 16 33.81
- Dec: +36 51 21.9
- Discoverer: SEI
- Discoverer Number: 1059
- Components:
- First year: 1896
- Last year: 2011
- Observations: 6
- First position angle: 321
- Last position angle: 320
- First separation: 12.9
- Last separation: 13.0
- Mag first component: 9.42
- Mag second component: 11.8
- Spectral type: K0
- Primary proper motion RA: 2
- Primary proper motion DEC: 5
- Secondary proper motion RA: 1
- Secondary proper motion DEC: 7
- Durchmusterung: +36 3979
- Notes: