21109+4658
- Unique Name: 21109+4658GIC 166
- RA: 21 10 57.35
- Dec: +46 57 57.6
- Discoverer: GIC
- Discoverer Number: 166
- Components:
- First year: 1952
- Last year: 2003
- Observations: 7
- First position angle: 151
- Last position angle: 150
- First separation: 28.9
- Last separation: 29.3
- Mag first component: 13.54
- Mag second component: 13.79
- Spectral type:
- Primary proper motion RA: -220
- Primary proper motion DEC: -319
- Secondary proper motion RA: -220
- Secondary proper motion DEC: -319
- Durchmusterung:
- Notes: N
