21109+4658
- Unique Name: 21109+4658JNN 290BC
- RA: 21 10 58.78
- Dec: +46 57 32.1
- Discoverer: JNN
- Discoverer Number: 290
- Components: BC
- First year: 2011
- Last year: 2012
- Observations: 3
- First position angle: 35
- Last position angle: 36
- First separation: 2.1
- Last separation: 2.4
- Mag first component: 13.79
- Mag second component: 17.0
- Spectral type: M2.5
- Primary proper motion RA: -220
- Primary proper motion DEC: -314
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: NU
