21187+2118
- Unique Name: 21187+2118ARY 62AB
- RA: 21 18 40.58
- Dec: +21 17 47.1
- Discoverer: ARY
- Discoverer Number: 62
- Components: AB
- First year: 1894
- Last year: 2006
- Observations: 11
- First position angle: 99
- Last position angle: 105
- First separation: 89.6
- Last separation: 88.1
- Mag first component: 9.14
- Mag second component: 9.43
- Spectral type: A0
- Primary proper motion RA: -1
- Primary proper motion DEC: -16
- Secondary proper motion RA: 3
- Secondary proper motion DEC: 2
- Durchmusterung: +20 4883
- Notes: