21164+4110
- Unique Name: 21164+4110ES 1689
- RA: 21 16 26.25
- Dec: +41 09 36.7
- Discoverer: ES
- Discoverer Number: 1689
- Components:
- First year: 1895
- Last year: 2003
- Observations: 5
- First position angle: 137
- Last position angle: 137
- First separation: 2.8
- Last separation: 3.3
- Mag first component: 11.3
- Mag second component: 11.5
- Spectral type:
- Primary proper motion RA: -21
- Primary proper motion DEC: -25
- Secondary proper motion RA: -11
- Secondary proper motion DEC: -38
- Durchmusterung: +40 4467
- Notes: