20166+2331
- Unique Name: 20166+2331POU4331
- RA: 20 16 35.40
- Dec: +23 31 25.5
- Discoverer: POU
- Discoverer Number: 4331
- Components:
- First year: 1898
- Last year: 2001
- Observations: 3
- First position angle: 74
- Last position angle: 148
- First separation: 2.0
- Last separation: 3.5
- Mag first component: 12.3
- Mag second component: 12.5
- Spectral type:
- Primary proper motion RA: -15
- Primary proper motion DEC: 2
- Secondary proper motion RA: 1
- Secondary proper motion DEC: -15
- Durchmusterung:
- Notes: