21186+1134
- Unique Name: 21186+1134BU 163AB
- RA: 21 18 34.85
- Dec: +11 34 08.2
- Discoverer: BU
- Discoverer Number: 163
- Components: AB
- First year: 1873
- Last year: 2012
- Observations: 213
- First position angle: 260
- Last position angle: 257
- First separation: 1.0
- Last separation: 0.9
- Mag first component: 7.31
- Mag second component: 8.88
- Spectral type: G0V G6V
- Primary proper motion RA: 32
- Primary proper motion DEC: -56
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +10 4514
- Notes: NO
