21183+4140
- Unique Name: 21183+4140COU2302AB
- RA: 21 18 19.27
- Dec: +41 40 06.3
- Discoverer: COU
- Discoverer Number: 2302
- Components: AB
- First year: 1985
- Last year: 2009
- Observations: 3
- First position angle: 60
- Last position angle: 66
- First separation: 0.9
- Last separation: 1.3
- Mag first component: 10.35
- Mag second component: 12.32
- Spectral type:
- Primary proper motion RA: -5
- Primary proper motion DEC: -6
- Secondary proper motion RA: -5
- Secondary proper motion DEC: -6
- Durchmusterung: +41 4083
- Notes: