21406+5416
- Unique Name: 21406+5416BKO 900
- RA: 21 40 34.99
- Dec: +54 15 33.3
- Discoverer: BKO
- Discoverer Number: 900
- Components:
- First year: 2000
- Last year: 2009
- Observations: 3
- First position angle: 171
- Last position angle: 165
- First separation: 5.5
- Last separation: 5.2
- Mag first component: 14.35
- Mag second component: 14.15
- Spectral type:
- Primary proper motion RA: -13
- Primary proper motion DEC: 47
- Secondary proper motion RA: 9
- Secondary proper motion DEC: -46
- Durchmusterung:
- Notes:
