20166+0507
- Unique Name: 20166+0507BU 59
- RA: 20 16 33.27
- Dec: +05 07 27.8
- Discoverer: BU
- Discoverer Number: 59
- Components:
- First year: 1872
- Last year: 2010
- Observations: 18
- First position angle: 125
- Last position angle: 102
- First separation: 6.0
- Last separation: 8.3
- Mag first component: 9.05
- Mag second component: 10.9
- Spectral type: A3
- Primary proper motion RA: 3
- Primary proper motion DEC: -17
- Secondary proper motion RA: 4
- Secondary proper motion DEC: -2
- Durchmusterung: +04 4398
- Notes: