21406+5419
- Unique Name: 21406+5419ABH 149AI
- RA: 21 40 39.10
- Dec: +54 19 29.0
- Discoverer: ABH
- Discoverer Number: 149
- Components: AI
- First year: 1987
- Last year: 2009
- Observations: 3
- First position angle: 280
- Last position angle: 280
- First separation: 84.4
- Last separation: 82.8
- Mag first component: 8.8
- Mag second component: 14.58
- Spectral type: M8e
- Primary proper motion RA: -10
- Primary proper motion DEC: -12
- Secondary proper motion RA: -1
- Secondary proper motion DEC: -2
- Durchmusterung:
- Notes: NU
