20123-3956
- Unique Name: 20123-3956WG 251
- RA: 20 12 18.78
- Dec: -39 55 42.3
- Discoverer: WG
- Discoverer Number: 251
- Components:
- First year: 1904
- Last year: 2000
- Observations: 4
- First position angle: 306
- Last position angle: 306
- First separation: 8.9
- Last separation: 9.6
- Mag first component: 11.4
- Mag second component: 11.9
- Spectral type:
- Primary proper motion RA: -2
- Primary proper motion DEC: 3
- Secondary proper motion RA: -13
- Secondary proper motion DEC: 7
- Durchmusterung:
- Notes: