21466+3815
- Unique Name: 21466+3815COU1639
- RA: 21 46 34.78
- Dec: +38 14 43.4
- Discoverer: COU
- Discoverer Number: 1639
- Components:
- First year: 1977
- Last year: 2005
- Observations: 6
- First position angle: 214
- Last position angle: 211
- First separation: 1.8
- Last separation: 2.0
- Mag first component: 11.27
- Mag second component: 11.56
- Spectral type: F8
- Primary proper motion RA: -3
- Primary proper motion DEC: -2
- Secondary proper motion RA: -3
- Secondary proper motion DEC: -2
- Durchmusterung: +37 4420
- Notes: