21451+3424
- Unique Name: 21451+3424COU1186
- RA: 21 45 06.20
- Dec: +34 22 22.0
- Discoverer: COU
- Discoverer Number: 1186
- Components:
- First year: 1974
- Last year: 1993
- Observations: 2
- First position angle: 52
- Last position angle: 234
- First separation: 0.4
- Last separation: 0.4
- Mag first component: 11.9
- Mag second component: 11.9
- Spectral type:
- Primary proper motion RA: 7
- Primary proper motion DEC: -6
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +33 4339
- Notes: I
