12139-2133
- Unique Name: 12139-2133DON 516
- RA: 12 13 54.23
- Dec: -21 34 03.0
- Discoverer: DON
- Discoverer Number: 516
- Components:
- First year: 1920
- Last year: 1999
- Observations: 7
- First position angle: 167
- Last position angle: 162
- First separation: 4.5
- Last separation: 4.7
- Mag first component: 9.86
- Mag second component: 10.97
- Spectral type: F7V
- Primary proper motion RA: -65
- Primary proper motion DEC: 67
- Secondary proper motion RA: -19
- Secondary proper motion DEC: -78
- Durchmusterung: -20 3602
- Notes: