20109+2237
- Unique Name: 20109+2237HDS2877
- RA: 20 10 56.20
- Dec: +22 37 18.6
- Discoverer: HDS
- Discoverer Number: 2877
- Components:
- First year: 1991
- Last year: 2009
- Observations: 2
- First position angle: 192
- Last position angle: 201
- First separation: 0.5
- Last separation: 0.5
- Mag first component: 10.06
- Mag second component: 12.5
- Spectral type: A0
- Primary proper motion RA: 3
- Primary proper motion DEC: -1
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +22 3953
- Notes: