20159+4307
- Unique Name: 20159+4307BRT2257
- RA: 20 15 54.82
- Dec: +43 07 49.2
- Discoverer: BRT
- Discoverer Number: 2257
- Components:
- First year: 1892
- Last year: 2006
- Observations: 3
- First position angle: 103
- Last position angle: 101
- First separation: 2.8
- Last separation: 3.4
- Mag first component: 10.85
- Mag second component: 12.1
- Spectral type:
- Primary proper motion RA: 2
- Primary proper motion DEC: -17
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: