21210+2233
- Unique Name: 21210+2233COU 229
- RA: 21 20 57.88
- Dec: +22 33 06.7
- Discoverer: COU
- Discoverer Number: 229
- Components:
- First year: 1967
- Last year: 2008
- Observations: 3
- First position angle: 120
- Last position angle: 119
- First separation: 0.5
- Last separation: 0.5
- Mag first component: 10.98
- Mag second component: 11.37
- Spectral type: G5
- Primary proper motion RA: 1
- Primary proper motion DEC: 5
- Secondary proper motion RA: 1
- Secondary proper motion DEC: 5
- Durchmusterung: +21 4528
- Notes: