21066+3436
- Unique Name: 21066+3436POP 22AB
- RA: 21 06 33.86
- Dec: +34 35 57.9
- Discoverer: POP
- Discoverer Number: 22
- Components: AB
- First year: 1941
- Last year: 2011
- Observations: 21
- First position angle: 83
- Last position angle: 110
- First separation: 8.0
- Last separation: 6.2
- Mag first component: 10.47
- Mag second component: 12.0
- Spectral type:
- Primary proper motion RA: 31
- Primary proper motion DEC: 40
- Secondary proper motion RA: 12
- Secondary proper motion DEC: -2
- Durchmusterung: +34 4283
- Notes: