21206+3420
- Unique Name: 21206+3420JNN 129
- RA: 21 20 35.07
- Dec: +34 19 47.7
- Discoverer: JNN
- Discoverer Number: 129
- Components:
- First year: 2008
- Last year: 2009
- Observations: 3
- First position angle: 225
- Last position angle: 213
- First separation: 0.1
- Last separation: 0.1
- Mag first component: 14.1
- Mag second component: 15.0
- Spectral type: M3.5 M4.5
- Primary proper motion RA: 105
- Primary proper motion DEC: 68
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: V
