21124+3810
- Unique Name: 21124+3810COU1971
- RA: 21 12 20.79
- Dec: +38 10 02.6
- Discoverer: COU
- Discoverer Number: 1971
- Components:
- First year: 1981
- Last year: 2008
- Observations: 2
- First position angle: 282
- Last position angle: 279
- First separation: 0.6
- Last separation: 0.6
- Mag first component: 10.0
- Mag second component: 13.0
- Spectral type:
- Primary proper motion RA: 2
- Primary proper motion DEC: -5
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +37 4221
- Notes: