19456+5121
- Unique Name: 19456+5121KOI 439AB
- RA: 19 45 37.66
- Dec: +51 21 29.5
- Discoverer: KOI
- Discoverer Number: 439
- Components: AB
- First year: 2011
- Last year: 2011
- Observations: 1
- First position angle: 17
- Last position angle: 17
- First separation: 5.5
- Last separation: 5.5
- Mag first component: 14.11
- Mag second component: 19.45
- Spectral type:
- Primary proper motion RA: 11
- Primary proper motion DEC: 8
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: R
