20120+2100
- Unique Name: 20120+2100HJ 907AB
- RA: 20 12 02.35
- Dec: +20 59 06.1
- Discoverer: HJ
- Discoverer Number: 907
- Components: AB
- First year: 1827
- Last year: 2013
- Observations: 14
- First position angle: 130
- Last position angle: 137
- First separation: 5.0
- Last separation: 5.7
- Mag first component: 9.77
- Mag second component: 10.33
- Spectral type: K2
- Primary proper motion RA: 66
- Primary proper motion DEC: 72
- Secondary proper motion RA: -16
- Secondary proper motion DEC: 108
- Durchmusterung: +20 4468
- Notes: