20125+5128
- Unique Name: 20125+5128AC 17AE
- RA: 20 12 31.73
- Dec: +51 27 49.0
- Discoverer: AC
- Discoverer Number: 17
- Components: AE
- First year: 1897
- Last year: 2010
- Observations: 7
- First position angle: 150
- Last position angle: 148
- First separation: 131.2
- Last separation: 130.4
- Mag first component: 6.17
- Mag second component: 10.78
- Spectral type: K2.5III
- Primary proper motion RA: -15
- Primary proper motion DEC: -15
- Secondary proper motion RA: -2
- Secondary proper motion DEC: -6
- Durchmusterung:
- Notes: