21115+2144
- Unique Name: 21115+2144COU 227
- RA: 21 11 28.93
- Dec: +21 44 01.0
- Discoverer: COU
- Discoverer Number: 227
- Components:
- First year: 1967
- Last year: 2010
- Observations: 13
- First position angle: 26
- Last position angle: 113
- First separation: 0.5
- Last separation: 0.5
- Mag first component: 10.05
- Mag second component: 11.77
- Spectral type: K2
- Primary proper motion RA: -82
- Primary proper motion DEC: -53
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +21 4489
- Notes: O