20109+3612
- Unique Name: 20109+3612SEI 959
- RA: 20 10 50.38
- Dec: +36 11 41.8
- Discoverer: SEI
- Discoverer Number: 959
- Components:
- First year: 1896
- Last year: 2002
- Observations: 2
- First position angle: 70
- Last position angle: 70
- First separation: 22.1
- Last separation: 21.6
- Mag first component: 12.52
- Mag second component: 13.29
- Spectral type:
- Primary proper motion RA: -1
- Primary proper motion DEC: -5
- Secondary proper motion RA: -2
- Secondary proper motion DEC: -7
- Durchmusterung:
- Notes: