20109+3047
- Unique Name: 20109+3047HDS2876
- RA: 20 10 54.39
- Dec: +30 47 22.9
- Discoverer: HDS
- Discoverer Number: 2876
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 72
- Last position angle: 72
- First separation: 0.3
- Last separation: 0.3
- Mag first component: 6.99
- Mag second component: 10.03
- Spectral type: B9
- Primary proper motion RA: 6
- Primary proper motion DEC: -1
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +30 3929
- Notes: