12207+2939
- Unique Name: 12207+2939SDK 54
- RA: 12 20 39.45
- Dec: +29 38 51.9
- Discoverer: SDK
- Discoverer Number: 54
- Components:
- First year: 1955
- Last year: 2010
- Observations: 5
- First position angle: 317
- Last position angle: 316
- First separation: 13.6
- Last separation: 13.5
- Mag first component: 15.73
- Mag second component: 17.1
- Spectral type: M
- Primary proper motion RA: -9
- Primary proper motion DEC: -25
- Secondary proper motion RA: -8
- Secondary proper motion DEC: -22
- Durchmusterung:
- Notes: