21405+3720
- Unique Name: 21405+3720ES 2067
- RA: 21 40 33.38
- Dec: +37 20 33.3
- Discoverer: ES
- Discoverer Number: 2067
- Components:
- First year: 1923
- Last year: 2011
- Observations: 3
- First position angle: 226
- Last position angle: 225
- First separation: 5.3
- Last separation: 6.7
- Mag first component: 10.9
- Mag second component: 14.9
- Spectral type:
- Primary proper motion RA: 4
- Primary proper motion DEC: 0
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +36 4639
- Notes: