12039+4257
- Unique Name: 12039+4257LDS4174
- RA: 12 03 58.69
- Dec: +42 56 19.4
- Discoverer: LDS
- Discoverer Number: 4174
- Components:
- First year: 1960
- Last year: 2002
- Observations: 5
- First position angle: 226
- Last position angle: 226
- First separation: 17.0
- Last separation: 16.9
- Mag first component: 14.06
- Mag second component: 16.5
- Spectral type:
- Primary proper motion RA: -21
- Primary proper motion DEC: -193
- Secondary proper motion RA: -14
- Secondary proper motion DEC: -196
- Durchmusterung:
- Notes: N
