21406+5419
- Unique Name: 21406+5419ABH 149AD
- RA: 21 40 39.10
- Dec: +54 19 29.0
- Discoverer: ABH
- Discoverer Number: 149
- Components: AD
- First year: 1987
- Last year: 2009
- Observations: 3
- First position angle: 302
- Last position angle: 302
- First separation: 11.8
- Last separation: 11.5
- Mag first component: 8.19
- Mag second component: 14.6
- Spectral type: M8e
- Primary proper motion RA: -10
- Primary proper motion DEC: -12
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: NU
