21181+1646
- Unique Name: 21181+1646J 3238AB
- RA: 21 17 55.40
- Dec: +16 44 24.4
- Discoverer: J
- Discoverer Number: 3238
- Components: AB
- First year: 1947
- Last year: 2004
- Observations: 2
- First position angle: 344
- Last position angle: 341
- First separation: 4.1
- Last separation: 3.7
- Mag first component: 12.0
- Mag second component: 13.0
- Spectral type:
- Primary proper motion RA: 11
- Primary proper motion DEC: -4
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: