21331+4512
- Unique Name: 21331+4512COU2308
- RA: 21 33 05.82
- Dec: +45 11 31.7
- Discoverer: COU
- Discoverer Number: 2308
- Components:
- First year: 1985
- Last year: 2008
- Observations: 5
- First position angle: 16
- Last position angle: 184
- First separation: 0.2
- Last separation: 0.2
- Mag first component: 10.3
- Mag second component: 10.3
- Spectral type: A5
- Primary proper motion RA: -13
- Primary proper motion DEC: -12
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +44 3859
- Notes: