21199+4307
- Unique Name: 21199+4307COU2439
- RA: 21 19 51.40
- Dec: +43 06 47.0
- Discoverer: COU
- Discoverer Number: 2439
- Components:
- First year: 1986
- Last year: 2009
- Observations: 4
- First position angle: 268
- Last position angle: 265
- First separation: 0.7
- Last separation: 0.7
- Mag first component: 9.61
- Mag second component: 9.97
- Spectral type: G5
- Primary proper motion RA: -3
- Primary proper motion DEC: -9
- Secondary proper motion RA: -3
- Secondary proper motion DEC: -9
- Durchmusterung: +42 4056
- Notes: