20105+2920
- Unique Name: 20105+2920BRT 46AB
- RA: 20 10 28.74
- Dec: +29 20 04.8
- Discoverer: BRT
- Discoverer Number: 46
- Components: AB
- First year: 1893
- Last year: 2003
- Observations: 11
- First position angle: 78
- Last position angle: 79
- First separation: 4.3
- Last separation: 5.3
- Mag first component: 11.24
- Mag second component: 11.8
- Spectral type:
- Primary proper motion RA: 11
- Primary proper motion DEC: 1
- Secondary proper motion RA: 13
- Secondary proper motion DEC: 1
- Durchmusterung:
- Notes: N
