21493+3451
- Unique Name: 21493+3451COU1483
- RA: 21 49 16.30
- Dec: +34 51 03.9
- Discoverer: COU
- Discoverer Number: 1483
- Components:
- First year: 1976
- Last year: 2009
- Observations: 11
- First position angle: 127
- Last position angle: 130
- First separation: 0.7
- Last separation: 0.7
- Mag first component: 10.67
- Mag second component: 11.05
- Spectral type: F8
- Primary proper motion RA: -7
- Primary proper motion DEC: 0
- Secondary proper motion RA: -7
- Secondary proper motion DEC: 0
- Durchmusterung: +34 4536
- Notes: